Summa Theologica by Thomas Aquinas
(selections)




Summa Theologica I, 1

The nature and extent of sacred doctrine

  1. Is it necessary?
  2. Is it a science?
  3. Is it one or many?
  4. Is it speculative or practical?
  5. How it is compared with other sciences?
  6. Is it the same as wisdom?
  7. Is God its subject-matter?
  8. Is it a matter of argument?
  9. Does it rightly employ metaphors and similes?
  10. May the Sacred Scripture of this doctrine be expounded in different senses?


Summa Theologica I, 1, 1

Whether, besides philosophy, any further doctrine is required?

Objection 1. It seems that, besides philosophical science, we have no need of any further knowledge. For man should not seek to know what is above reason: "Seek not the things that are too high for thee" (Sirach 3:22). But whatever is not above reason is fully treated of in philosophical science. Therefore any other knowledge besides philosophical science is superfluous.

Objection 2. Further, knowledge can be concerned only with being, for nothing can be known, save what is true; and all that is, is true. But everything that is, is treated of in philosophical science---even God Himself; so that there is a part of philosophy called theology, or the divine science, as Aristotle has proved (Metaph. vi). Therefore, besides philosophical science, there is no need of any further knowledge.

On the contrary, It is written (2 Tim. 3:16): "All Scripture, inspired of God is profitable to teach, to reprove, to correct, to instruct in justice." Now Scripture, inspired of God, is no part of philosophical science, which has been built up by human reason. Therefore it is useful that besides philosophical science, there should be other knowledge, i.e. inspired of God.

I answer that, It was necessary for man's salvation that there should be a knowledge revealed by God besides philosophical science built up by human reason. Firstly, indeed, because man is directed to God, as to an end that surpasses the grasp of his reason: "The eye hath not seen, O God, besides Thee, what things Thou hast prepared for them that wait for Thee" (Is. 66:4). But the end must first be known by men who are to direct their thoughts and actions to the end. Hence it was necessary for the salvation of man that certain truths which exceed human reason should be made known to him by divine revelation. Even as regards those truths about God which human reason could have discovered, it was necessary that man should be taught by a divine revelation; because the truth about God such as reason could discover, would only be known by a few, and that after a long time, and with the admixture of many errors. Whereas man's whole salvation, which is in God, depends upon the knowledge of this truth. Therefore, in order that the salvation of men might be brought about more fitly and more surely, it was necessary that they should be taught divine truths by divine revelation. It was therefore necessary that besides philosophical science built up by reason, there should be a sacred science learned through revelation.

Reply to Objection 1. Although those things which are beyond man's knowledge may not be sought for by man through his reason, nevertheless, once they are revealed by God, they must be accepted by faith. Hence the sacred text continues, "For many things are shown to thee above the understanding of man" (Sirach 3:25). And in this, the sacred science consists.

Reply to Objection 2. Sciences are differentiated according to the various means through which knowledge is obtained. For the astronomer and the physicist both may prove the same conclusion: that the earth, for instance, is round: the astronomer by means of mathematics (i.e. abstracting from matter), but the physicist by means of matter itself. Hence there is no reason why those things which may be learned from philosophical science, so far as they can be known by natural reason, may not also be taught us by another science so far as they fall within revelation. Hence theology included in sacred doctrine differs in kind from that theology which is part of philosophy.


Summa Theologica I, 1, 8

Whether sacred doctrine is a matter of argument?

Objection 1. It seems this doctrine is not a matter of argument. For Ambrose says (De Fide 1): "Put arguments aside where faith is sought." But in this doctrine, faith especially is sought: "But these things are written that you may believe" (Jn. 20:31). Therefore sacred doctrine is not a matter of argument.

Objection 2. Further, if it is a matter of argument, the argument is either from authority or from reason. If it is from authority, it seems unbefitting its dignity, for the proof from authority is the weakest form of proof. But if it is from reason, this is unbefitting its end, because, according to Gregory (Hom. 26), "faith has no merit in those things of which human reason brings its own experience." Therefore sacred doctrine is not a matter of argument.

On the contrary, The Scripture says that a bishop should "embrace that faithful word which is according to doctrine, that he may be able to exhort in sound doctrine and to convince the gainsayers" (Titus 1:9).

I answer that, As other sciences do not argue in proof of their principles, but argue from their principles to demonstrate other truths in these sciences: so this doctrine does not argue in proof of its principles, which are the articles of faith, but from them it goes on to prove something else; as the Apostle from the resurrection of Christ argues in proof of the general resurrection (1 Cor. 15). However, it is to be borne in mind, in regard to the philosophical sciences, that the inferior sciences neither prove their principles nor dispute with those who deny them, but leave this to a higher science; whereas the highest of them, viz. metaphysics, can dispute with one who denies its principles, if only the opponent will make some concession; but if he concede nothing, it can have no dispute with him, though it can answer his objections. Hence Sacred Scripture, since it has no science above itself, can dispute with one who denies its principles only if the opponent admits some at least of the truths obtained through divine revelation; thus we can argue with heretics from texts in Holy Writ, and against those who deny one article of faith, we can argue from another. If our opponent believes nothing of divine revelation, there is no longer any means of proving the articles of faith by reasoning, but only of answering his objections---if he has any---against faith. Since faith rests upon infallible truth, and since the contrary of a truth can never be demonstrated, it is clear that the arguments brought against faith cannot be demonstrations, but are difficulties that can be answered.

Reply to Objection 1. Although arguments from human reason cannot avail to prove what must be received on faith, nevertheless, this doctrine argues from articles of faith to other truths.

Reply to Objection 2. This doctrine is especially based upon arguments from authority, inasmuch as its principles are obtained by revelation: thus we ought to believe on the authority of those to whom the revelation has been made. Nor does this take away from the dignity of this doctrine, for although the argument from authority based on human reason is the weakest, yet the argument from authority based on divine revelation is the strongest. But sacred doctrine makes use even of human reason, not, indeed, to prove faith (for thereby the merit of faith would come to an end), but to make clear other things that are put forward in this doctrine. Since therefore grace does not destroy nature but perfects it, natural reason should minister to faith as the natural bent of the will ministers to charity. Hence the Apostle says: "Bringing into captivity every understanding unto the obedience of Christ" (2 Cor. 10:5). Hence sacred doctrine makes use also of the authority of philosophers in those questions in which they were able to know the truth by natural reason, as Paul quotes a saying of Aratus: "As some also of your own poets said: For we are also His offspring" (Acts 17:28). Nevertheless, sacred doctrine makes use of these authorities as extrinsic and probable arguments; but properly uses the authority of the canonical Scriptures as an incontrovertible proof, and the authority of the doctors of the Church as one that may properly be used, yet merely as probable. For our faith rests upon the revelation made to the apostles and prophets who wrote the canonical books, and not on the revelations (if any such there are) made to other doctors. Hence Augustine says (Epis. ad Hieron. xix, 1): "Only those books of Scripture which are called canonical have I learned to hold in such honor as to believe their authors have not erred in any way in writing them. But other authors I so read as not to deem everything in their works to be true, merely on account of their having so thought and written, whatever may have been their holiness and learning."


Summa Theologica I, 2

The existence of God

  1. Is the proposition "God exists" self-evident?
  2. Is it demonstrable?
  3. Does God exist?


Summa Theologica I, 2, 3

Whether God exists?

Objection 1. It seems that God does not exist; because if one of two contraries be infinite, the other would be altogether destroyed. But the word "God" means that He is infinite goodness. If, therefore, God existed, there would be no evil discoverable; but there is evil in the world. Therefore God does not exist.

Objection 2. Further, it is superfluous to suppose that what can be accounted for by a few principles has been produced by many. But it seems that everything we see in the world can be accounted for by other principles, supposing God did not exist. For all natural things can be reduced to one principle which is nature; and all voluntary things can be reduced to one principle which is human reason, or will. Therefore there is no need to suppose God's existence.

On the contrary, It is said in the person of God: "I am Who am." (Ex. 3:14)

I answer that, The existence of God can be proved in five ways.

The first and more manifest way is the argument from motion. It is certain, and evident to our senses, that in the world some things are in motion. Now whatever is in motion is put in motion by another, for nothing can be in motion except it is in potentiality to that towards which it is in motion; whereas a thing moves inasmuch as it is in act. For motion is nothing else than the reduction of something from potentiality to actuality. But nothing can be reduced from potentiality to actuality, except by something in a state of actuality. Thus that which is actually hot, as fire, makes wood, which is potentially hot, to be actually hot, and thereby moves and changes it. Now it is not possible that the same thing should be at once in actuality and potentiality in the same respect, but only in different respects. For what is actually hot cannot simultaneously be potentially hot; but it is simultaneously potentially cold. It is therefore impossible that in the same respect and in the same way a thing should be both mover and moved, i.e. that it should move itself. Therefore, whatever is in motion must be put in motion by another. If that by which it is put in motion be itself put in motion, then this also must needs be put in motion by another, and that by another again. But this cannot go on to infinity, because then there would be no first mover, and, consequently, no other mover; seeing that subsequent movers move only inasmuch as they are put in motion by the first mover; as the staff moves only because it is put in motion by the hand. Therefore it is necessary to arrive at a first mover, put in motion by no other; and this everyone understands to be God.

The second way is from the nature of the efficient cause. In the world of sense we find there is an order of efficient causes. There is no case known (neither is it, indeed, possible) in which a thing is found to be the efficient cause of itself; for so it would be prior to itself, which is impossible. Now in efficient causes it is not possible to go on to infinity, because in all efficient causes following in order, the first is the cause of the intermediate cause, and the intermediate is the cause of the ultimate cause, whether the intermediate cause be several, or only one. Now to take away the cause is to take away the effect. Therefore, if there be no first cause among efficient causes, there will be no ultimate, nor any intermediate cause. But if in efficient causes it is possible to go on to infinity, there will be no first efficient cause, neither will there be an ultimate effect, nor any intermediate efficient causes; all of which is plainly false. Therefore it is necessary to admit a first efficient cause, to which everyone gives the name of God.

The third way is taken from possibility and necessity, and runs thus. We find in nature things that are possible to be and not to be, since they are found to be generated, and to corrupt, and consequently, they are possible to be and not to be. But it is impossible for these always to exist, for that which is possible not to be at some time is not. Therefore, if everything is possible not to be, then at one time there could have been nothing in existence. Now if this were true, even now there would be nothing in existence, because that which does not exist only begins to exist by something already existing. Therefore, if at one time nothing was in existence, it would have been impossible for anything to have begun to exist; and thus even now nothing would be in existence---which is absurd. Therefore, not all beings are merely possible, but there must exist something the existence of which is necessary. But every necessary thing either has its necessity caused by another, or not. Now it is impossible to go on to infinity in necessary things which have their necessity caused by another, as has been already proved in regard to efficient causes. Therefore we cannot but postulate the existence of some being having of itself its own necessity, and not receiving it from another, but rather causing in others their necessity. This all men speak of as God.

The fourth way is taken from the gradation to be found in things. Among beings there are some more and some less good, true, noble and the like. But "more" and "less" are predicated of different things, according as they resemble in their different ways something which is the maximum, as a thing is said to be hotter according as it more nearly resembles that which is hottest; so that there is something which is truest, something best, something noblest and, consequently, something which is uttermost being; for those things that are greatest in truth are greatest in being, as it is written in Metaph. ii. Now the maximum in any genus is the cause of all in that genus; as fire, which is the maximum heat, is the cause of all hot things. Therefore there must also be something which is to all beings the cause of their being, goodness, and every other perfection; and this we call God.

The fifth way is taken from the governance of the world. We see that things which lack intelligence, such as natural bodies, act for an end, and this is evident from their acting always, or nearly always, in the same way, so as to obtain the best result. Hence it is plain that not fortuitously, but designedly, do they achieve their end. Now whatever lacks intelligence cannot move towards an end, unless it be directed by some being endowed with knowledge and intelligence; as the arrow is shot to its mark by the archer. Therefore some intelligent being exists by whom all natural things are directed to their end; and this being we call God.

Reply to Objection 1. As Augustine says (Enchiridion xi): "Since God is the highest good, He would not allow any evil to exist in His works, unless His omnipotence and goodness were such as to bring good even out of evil." This is part of the infinite goodness of God, that He should allow evil to exist, and out of it produce good.

Reply to Objection 2. Since nature works for a determinate end under the direction of a higher agent, whatever is done by nature must needs be traced back to God, as to its first cause. So also whatever is done voluntarily must also be traced back to some higher cause other than human reason or will, since these can change or fail; for all things that are changeable and capable of defect must be traced back to an immovable and self-necessary first principle, as was shown in the body of the Article.


Summa Theologica I, 48

The distinction of things in particular

  1. Is evil a nature?
  2. Is evil found in things?
  3. Is good the subject of evil?
  4. Does evil totally corrupt good?
  5. The division of evil into pain and fault
  6. Which has more the nature of evil: pain, or fault?

Summa Theologica I, 48, 2

Whether evil is found in things?

Objection 1. It would seem that evil is not found in things. For whatever is found in things, is either something, or a privation of something, that is a "not-being." But Dionysius says (Div. Nom. iv) that "evil is distant from existence, and even more distant from non-existence." Therefore evil is not at all found in things.

Objection 2. Further, "being" and "thing" are convertible. If therefore evil is a being in things, it follows that evil is a thing, which is contrary to what has been said (1).

Objection 3. Further, "the white unmixed with black is the most white," as the Philosopher says (Topic. iii, 4). Therefore also the good unmixed with evil is the greater good. But God makes always what is best, much more than nature does. Therefore in things made by God there is no evil.

On the contrary, On the above assumptions, all prohibitions and penalties would cease, for they exist only for evils.

I answer that, As was said above (47, 1,2), the perfection of the universe requires that there should be inequality in things, so that every grade of goodness may be realized. Now, one grade of goodness is that of the good which cannot fail. Another grade of goodness is that of the good which can fail in goodness, and this grade is to be found in existence itself; for some things there are which cannot lose their existence as incorruptible things, while some there are which can lose it, as things corruptible.

As, therefore, the perfection of the universe requires that there should be not only beings incorruptible, but also corruptible beings; so the perfection of the universe requires that there should be some which can fail in goodness, and thence it follows that sometimes they do fail. Now it is in this that evil consists, namely, in the fact that a thing fails in goodness. Hence it is clear that evil is found in things, as corruption also is found; for corruption is itself an evil.

Reply to Objection 1. Evil is distant both from simple being and from simple "not-being," because it is neither a habit nor a pure negation, but a privation.

Reply to Objection 2. As the Philosopher says (Metaph. v, text 14), being is twofold. In one way it is considered as signifying the entity of a thing, as divisible by the ten "predicaments"; and in that sense it is convertible with thing, and thus no privation is a being, and neither therefore is evil a being. In another sense being conveys the truth of a proposition which unites together subject and attribute by a copula, notified by this word "is"; and in this sense being is what answers to the question, "Does it exist?" and thus we speak of blindness as being in the eye; or of any other privation. In this way even evil can be called a being. Through ignorance of this distinction some, considering that things may be evil, or that evil is said to be in things, believed that evil was a positive thing in itself.

Reply to Objection 3. God and nature and any other agent make what is best in the whole, but not what is best in every single part, except in order to the whole, as was said above (47, 2). And the whole itself, which is the universe of creatures, is all the better and more perfect if some things in it can fail in goodness, and do sometimes fail, God not preventing this. This happens, firstly, because "it belongs to Providence not to destroy, but to save nature," as Dionysius says (Div. Nom. iv); but it belongs to nature that what may fail should sometimes fail; secondly, because, as Augustine says (Enchir. 11), "God is so powerful that He can even make good out of evil." Hence many good things would be taken away if God permitted no evil to exist; for fire would not be generated if air was not corrupted, nor would the life of a lion be preserved unless the ass were killed. Neither would avenging justice nor the patience of a sufferer be praised if there were no injustice.


Summa Theologica I, 103

The government of things in general

  1. Is the world governed by someone?
  2. What is the end of this government?
  3. Is the world governed by one?
  4. What are the effects of this government?
  5. Are all things subject to Divine government?
  6. Are all things immediately governed by God?
  7. Is the Divine government frustrated in anything?
  8. Is anything contrary to the Divine Providence?


Summa Theologica I, 103, 1

Whether the world is governed by anyone?

Objection 1. It would seem that the world is not governed by anyone. For it belongs to those things to be governed, which move or work for an end. But natural things which make up the greater part of the world do not move, or work for an end; for they have no knowledge of their end. Therefore the world is not governed.

Objection 2. Further, those things are governed which are moved towards an object. But the world does not appear to be so directed, but has stability in itself. Therefore it is not governed.

Objection 3. Further, what is necessarily determined by its own nature to one particular thing, does not require any external principle of government. But the principal parts of the world are by a certain necessity determined to something particular in their actions and movements. Therefore the world does not require to be governed.

On the contrary, It is written (Wis. 14:3): "But Thou, O Father, governest all things by Thy Providence." And Boethius says (De Consol. iii): "Thou Who governest this universe by mandate eternal."

I answer that, Certain ancient philosophers denied the government of the world, saying that all things happened by chance. But such an opinion can be refuted as impossible in two ways.

First, by observation of things themselves: for we observe that in nature things happen always or nearly always for the best; which would not be the case unless some sort of providence directed nature towards good as an end; which is to govern. Wherefore the unfailing order we observe in things is a sign of their being governed; for instance, if we enter a well-ordered house we gather therefrom the intention of him that put it in order, as Tullius says (De Nat. Deorum ii), quoting Aristotle [Cleanthes].

Secondly, this is clear from a consideration of Divine goodness, which, as we have said above (44, 4; 65, 2), was the cause of the production of things in existence. For as "it belongs to the best to produce the best," it is not fitting that the supreme goodness of God should produce things without giving them their perfection. Now a thing's ultimate perfection consists in the attainment of its end. Therefore it belongs to the Divine goodness, as it brought things into existence, so to lead them to their end: and this is to govern.

Reply to Objection 1. A thing moves or operates for an end in two ways.

First, in moving itself to the end, as man and other rational creatures; and such things have knowledge of their end, and of the means to the end.

Secondly, a thing is said to move or operate for an end, as though moved or directed by another thereto, as an arrow directed to the target by the archer, who knows the end unknown to the arrow. Wherefore, as the movement of the arrow towards a definite end shows clearly that it is directed by someone with knowledge, so the unvarying course of natural things which are without knowledge, shows clearly that the world is governed by some reason.

Reply to Objection 2. In all created things there is a stable element, at least primary matter; and something belonging to movement, if under movement we include operation. And things need governing as to both: because even that which is stable, since it is created from nothing, would return to nothingness were it not sustained by a governing hand, as will be explained later (104, 1).

Reply to Objection 3. The natural necessity inherent in those beings which are determined to a particular thing, is a kind of impression from God, directing them to their end; as the necessity whereby an arrow is moved so as to fly towards a certain point is an impression from the archer, and not from the arrow. But there is a difference, inasmuch as that which creatures receive from God is their nature, while that which natural things receive from man in addition to their nature is somewhat violent. Wherefore, as the violent necessity in the movement of the arrow shows the action of the archer, so the natural necessity of things shows the government of Divine Providence.


Summa Theologica I, 103, 2

Whether the end of the government of the world is something outside the world?

Objection 1. It would seem that the end of the government of the world is not something existing outside the world. For the end of the government of a thing is that whereto the thing governed is brought. But that whereto a thing is brought is some good in the thing itself; thus a sick man is brought back to health, which is something good in him. Therefore the end of government of things is some good not outside, but within the things themselves.

Objection 2. Further, the Philosopher says (Ethic. i, 1): "Some ends are an operation; some are a work"--i.e. produced by an operation. But nothing can be produced by the whole universe outside itself; and operation exists in the agent. Therefore nothing extrinsic can be the end of the government of things.

Objection 3. Further, the good of the multitude seems to consist in order, and peace which is the "tranquillity of order," as Augustine says (De Civ. Dei xix, 13). But the world is composed of a multitude of things. Therefore the end of the government of the world is the peaceful order in things themselves. Therefore the end of the government of the world is not an extrinsic good.

On the contrary, It is written (Prov. 16:4): "The Lord hath made all things for Himself." But God is outside the entire order of the universe. Therefore the end of all things is something extrinsic to them.

I answer that, As the end of a thing corresponds to its beginning, it is not possible to be ignorant of the end of things if we know their beginning. Therefore, since the beginning of all things is something outside the universe, namely, God, it is clear from what has been expounded above (44, 1,2), that we must conclude that the end of all things is some extrinsic good. This can be proved by reason. For it is clear that good has the nature of an end; wherefore, a particular end of anything consists in some particular good; while the universal end of all things is the Universal Good; Which is good of Itself by virtue of Its Essence, Which is the very essence of goodness; whereas a particular good is good by participation. Now it is manifest that in the whole created universe there is not a good which is not such by participation. Wherefore that good which is the end of the whole universe must be a good outside the universe.

Reply to Objection 1. We may acquire some good in many ways: first, as a form existing in us, such as health or knowledge; secondly, as something done by us, as a builder attains his end by building a house; thirdly, as something good possessed or acquired by us, as the buyer of a field attains his end when he enters into possession. Wherefore nothing prevents something outside the universe being the good to which it is directed.

Reply to Objection 2. The Philosopher is speaking of the ends of various arts; for the end of some arts consists in the operation itself, as the end of a harpist is to play the harp; whereas the end of other arts consists in something produced, as the end of a builder is not the act of building, but the house he builds. Now it may happen that something extrinsic is the end not only as made, but also as possessed or acquired or even as represented, as if we were to say that Hercules is the end of the statue made to represent him. Therefore we may say that some good outside the whole universe is the end of the government of the universe, as something possessed and represented; for each thing tends to a participation thereof, and to an assimilation thereto, as far as is possible.


Summa Theologica I, 103, 6

Whether all things are immediately governed by God?

Objection 1. It would seem that all things are governed by God immediately. For Gregory of Nyssa (Nemesius, De Nat. Hom.) reproves the opinion of Plato who divides providence into three parts. The first he ascribes to the supreme god, who watches over heavenly things and all universals; the second providence he attributes to the secondary deities, who go the round of the heavens to watch over generation and corruption; while he ascribes a third providence to certain spirits who are guardians on earth of human actions. Therefore it seems that all things are immediately governed by God.

Objection 2. Further, it is better that a thing be done by one, if possible, than by many, as the Philosopher says (Phys. viii, 6). But God can by Himself govern all things without any intermediary cause. Therefore it seems that He governs all things immediately.

Objection 3. Further, in God nothing is defective or imperfect. But it seems to be imperfect in a ruler to govern by means of others; thus an earthly king, by reason of his not being able to do everything himself, and because he cannot be everywhere at the same time, requires to govern by means of ministers. Therefore God governs all things immediately.

On the contrary, Augustine says (De Trin. iii, 4): "As the lower and grosser bodies are ruled in a certain orderly way by bodies of greater subtlety and power; so all bodies are ruled by the rational spirit of life; and the sinful and unfaithful spirit is ruled by the good and just spirit of life; and this spirit by God Himself."

I answer that, In government there are two things to be considered; the design of government, which is providence itself; and the execution of the design. As to the design of government, God governs all things immediately; whereas in its execution, He governs some things by means of others.

The reason of this is that as God is the very essence of goodness, so everything must be attributed to God in its highest degree of goodness. Now the highest degree of goodness in any practical order, design or knowledge (and such is the design of government) consists in knowing the individuals acted upon; as the best physician is not the one who can only give his attention to general principles, but who can consider the least details; and so on in other things. Therefore we must say that God has the design of the government of all things, even of the very least.

But since things which are governed should be brought to perfection by government, this government will be so much the better in the degree the things governed are brought to perfection. Now it is a greater perfection for a thing to be good in itself and also the cause of goodness in others, than only to be good in itself. Therefore God so governs things that He makes some of them to be causes of others in government; as a master, who not only imparts knowledge to his pupils, but gives also the faculty of teaching others.

Reply to Objection 1. Plato's opinion is to be rejected, because he held that God did not govern all things immediately, even in the design of government; this is clear from the fact that he divided providence, which is the design of government, into three parts.

Reply to Objection 2. If God governed alone, things would be deprived of the perfection of causality. Wherefore all that is effected by many would not be accomplished by one.

Reply to Objection 3. That an earthly king should have ministers to execute his laws is a sign not only of his being imperfect, but also of his dignity; because by the ordering of ministers the kingly power is brought into greater evidence.


Summa Theologica I, 103, 7

Whether anything can happen outside the order of the Divine government?

Objection 1. It would seem possible that something may occur outside the order of the Divine government. For Boethius says (De Consol. iii) that "God disposes all for good." Therefore, if nothing happens outside the order of the Divine government, it would follow that no evil exists.

Objection 2. Further, nothing that is in accordance with the pre-ordination of a ruler occurs by chance. Therefore, if nothing occurs outside the order of the Divine government, it follows that there is nothing fortuitous and casual.

Objection 3. Further, the order of Divine Providence is certain and unchangeable; because it is in accordance with the eternal design. Therefore, if nothing happens outside the order of the Divine government, it follows that all things happen by necessity, and nothing is contingent; which is false. Therefore it is possible for something to occur outside the order of the Divine government.

On the contrary, It is written (Esther 13:9): "O Lord, Lord, almighty King, all things are in Thy power, and there is none that can resist Thy will."

I answer that, It is possible for an effect to result outside the order of some particular cause; but not outside the order of the universal cause. The reason of this is that no effect results outside the order of a particular cause, except through some other impeding cause; which other cause must itself be reduced to the first universal cause; as indigestion may occur outside the order of the nutritive power by some such impediment as the coarseness of the food, which again is to be ascribed to some other cause, and so on till we come to the first universal cause. Therefore as God is the first universal cause, not of one genus only, but of all being in general, it is impossible for anything to occur outside the order of the Divine government; but from the very fact that from one point of view something seems to evade the order of Divine providence considered in regard to one particular cause, it must necessarily come back to that order as regards some other cause.

Reply to Objection 1. There is nothing wholly evil in the world, for evil is ever founded on good, as shown above (48, 3). Therefore something is said to be evil through its escaping from the order of some particular good. If it wholly escaped from the order of the Divine government, it would wholly cease to exist.

Reply to Objection 2. Things are said to be fortuitous as regards some particular cause from the order of which they escape. But as to the order of Divine providence, "nothing in the world happens by chance," as Augustine declares (QQ. 83, qu. 24).

Reply to Objection 3. Certain effects are said to be contingent as compared to their proximate causes, which may fail in their effects; and not as though anything could happen entirely outside the order of Divine government. The very fact that something occurs outside the order of some proximate cause, is owing to some other cause, itself subject to the Divine government.


Summa Theologica I, 103, 8

Whether anything can resist the order of the Divine government?

Objection 1. It would seem possible that some resistance can be made to the order of the Divine government. For it is written (Is. 3:8): "Their tongue and their devices are against the Lord."

Objection 2. Further, a king does not justly punish those who do not rebel against his commands. Therefore if no one rebelled against God's commands, no one would be justly punished by God.

Objection 3. Further, everything is subject to the order of the Divine government. But some things oppose others. Therefore some things rebel against the order of the Divine government.

On the contrary, Boethius says (De Consol. iii): "There is nothing that can desire or is able to resist this sovereign good. It is this sovereign good therefore that ruleth all mightily and ordereth all sweetly," as is said (Wis. 8) of Divine wisdom.

I answer that, We may consider the order of Divine providence in two ways: in general, inasmuch as it proceeds from the governing cause of all; and in particular, inasmuch as it proceeds from some particular cause which executes the order of the Divine government.

Considered in the first way, nothing can resist the order of the Divine government. This can be proved in two ways: firstly from the fact that the order of the Divine government is wholly directed to good, and everything by its own operation and effort tends to good only, "for no one acts intending evil," as Dionysius says (Div. Nom. iv): secondly from the fact that, as we have said above (1, ad 3; 5, ad 2), every inclination of anything, whether natural or voluntary, is nothing but a kind of impression from the first mover; as the inclination of the arrow towards a fixed point is nothing but an impulse received from the archer. Wherefore every agent, whether natural or free, attains to its divinely appointed end, as though of its own accord. For this reason God is said "to order all things sweetly."

Reply to Objection 1. Some are said to think or speak, or act against God: not that they entirely resist the order of the Divine government; for even the sinner intends the attainment of a certain good: but because they resist some particular good, which belongs to their nature or state. Therefore they are justly punished by God.

Reply to Objection 2 is clear from the above.

Reply to Objection 3. From the fact that one thing opposes another, it follows that some one thing can resist the order of a particular cause; but not that order which depends on the universal cause of all things.


Summa Theologica I-II, 2

Things in which man's happiness consists

  1. Does happiness consist in wealth?
  2. In honor?
  3. In fame or glory?
  4. In power?
  5. In any good of the body?
  6. In pleasure?
  7. In any good of the soul?
  8. In any created good?


Summa Theologica I-II, 2, 1

Whether man's happiness consists in wealth?

Objection 1. It would seem that man's happiness consists in wealth. For since happiness is man's last end, it must consist in that which has the greatest hold on man's affections. Now this is wealth: for it is written (Eccles. 10:19): "All things obey money." Therefore man's happiness consists in wealth.

Objection 2. Further, according to Boethius (De Consol. iii), happiness is "a state of life made perfect by the aggregate of all good things." Now money seems to be the means of possessing all things: for, as the Philosopher says (Ethic. v, 5), money was invented, that it might be a sort of guarantee for the acquisition of whatever man desires. Therefore happiness consists in wealth.

Objection 3. Further, since the desire for the sovereign good never fails, it seems to be infinite. But this is the case with riches more than anything else; since "a covetous man shall not be satisfied with riches" (Eccles. 5:9). Therefore happiness consists in wealth.

On the contrary, Man's good consists in retaining happiness rather than in spreading it. But as Boethius says (De Consol. ii), "wealth shines in giving rather than in hoarding: for the miser is hateful, whereas the generous man is applauded." Therefore man's happiness does not consist in wealth.

I answer that, It is impossible for man's happiness to consist in wealth. For wealth is twofold, as the Philosopher says (Polit. i, 3), viz. natural and artificial. Natural wealth is that which serves man as a remedy for his natural wants: such as food, drink, clothing, cars, dwellings, and such like, while artificial wealth is that which is not a direct help to nature, as money, but is invented by the art of man, for the convenience of exchange, and as a measure of things salable.

Now it is evident that man's happiness cannot consist in natural wealth. For wealth of this kind is sought for the sake of something else, viz. as a support of human nature: consequently it cannot be man's last end, rather is it ordained to man as to its end. Wherefore in the order of nature, all such things are below man, and made for him, according to Ps. 8:8: "Thou hast subjected all things under his feet."

And as to artificial wealth, it is not sought save for the sake of natural wealth; since man would not seek it except because, by its means, he procures for himself the necessaries of life. Consequently much less can it be considered in the light of the last end. Therefore it is impossible for happiness, which is the last end of man, to consist in wealth.

Reply to Objection 1. All material things obey money, so far as the multitude of fools is concerned, who know no other than material goods, which can be obtained for money. But we should take our estimation of human goods not from the foolish but from the wise: just as it is for a person whose sense of taste is in good order, to judge whether a thing is palatable.

Reply to Objection 2. All things salable can be had for money: not so spiritual things, which cannot be sold. Hence it is written (Prov. 17:16): "What doth it avail a fool to have riches, seeing he cannot buy wisdom."

Reply to Objection 3. The desire for natural riches is not infinite: because they suffice for nature in a certain measure. But the desire for artificial wealth is infinite, for it is the servant of disordered concupiscence, which is not curbed, as the Philosopher makes clear (Polit. i, 3). Yet this desire for wealth is infinite otherwise than the desire for the sovereign good. For the more perfectly the sovereign good is possessed, the more it is loved, and other things despised: because the more we possess it, the more we know it. Hence it is written (Sirach 24:29): "They that eat me shall yet hunger." Whereas in the desire for wealth and for whatsoever temporal goods, the contrary is the case: for when we already possess them, we despise them, and seek others: which is the sense of Our Lord's words (Jn. 4:13): "Whosoever drinketh of this water," by which temporal goods are signified, "shall thirst again." The reason of this is that we realize more their insufficiency when we possess them: and this very fact shows that they are imperfect, and the sovereign good does not consist therein.


Summa Theologica I-II, 2, 2

Whether man's happiness consists in honors?

Objection 1. It would seem that man's happiness consists in honors. For happiness or bliss is "the reward of virtue," as the Philosopher says (Ethic. i, 9). But honor more than anything else seems to be that by which virtue is rewarded, as the Philosopher says (Ethic. iv, 3). Therefore happiness consists especially in honor.

Objection 2. Further, that which belongs to God and to persons of great excellence seems especially to be happiness, which is the perfect good. But that is honor, as the Philosopher says (Ethic. iv, 3). Moreover, the Apostle says (1 Tim. 1:17): "To . . . the only God be honor and glory." Therefore happiness consists in honor.

Objection 3. Further, that which man desires above all is happiness. But nothing seems more desirable to man than honor: since man suffers loss in all other things, lest he should suffer loss of honor. Therefore happiness consists in honor.

On the contrary, Happiness is in the happy. But honor is not in the honored, but rather in him who honors, and who offers deference to the person honored, as the Philosopher says (Ethic. i, 5). Therefore happiness does not consist in honor.

I answer that, It is impossible for happiness to consist in honor. For honor is given to a man on account of some excellence in him; and consequently it is a sign and attestation of the excellence that is in the person honored. Now a man's excellence is in proportion, especially to his happiness, which is man's perfect good; and to its parts, i.e. those goods by which he has a certain share of happiness. And therefore honor can result from happiness, but happiness cannot principally consist therein.

Reply to Objection 1. As the Philosopher says (Ethic. i, 5), honor is not that reward of virtue, for which the virtuous work: but they receive honor from men by way of reward, "as from those who have nothing greater to offer." But virtue's true reward is happiness itself, for which the virtuous work: whereas if they worked for honor, it would no longer be a virtue, but ambition.

Reply to Objection 2. Honor is due to God and to persons of great excellence as a sign of attestation of excellence already existing: not that honor makes them excellent.

Reply to Objection 3. That man desires honor above all else, arises from his natural desire for happiness, from which honor results, as stated above. Wherefore man seeks to be honored especially by the wise, on whose judgment he believes himself to be excellent or happy.


Summa Theologica I-II, 2, 3

Whether man's happiness consists in fame or glory?

Objection 1. It would seem that man's happiness consists in glory. For happiness seems to consist in that which is paid to the saints for the trials they have undergone in the world. But this is glory: for the Apostle says (Rm. 8:18): "The sufferings of this time are not worthy to be compared with the glory to come, that shall be revealed in us." Therefore happiness consists in glory.

Objection 2. Further, good is diffusive of itself, as stated by Dionysius (Div. Nom. iv). But man's good is spread abroad in the knowledge of others by glory more than by anything else: since, according to Ambrose [Augustine, Contra Maxim. Arian. ii. 13, glory consists "in being well known and praised." Therefore man's happiness consists in glory.

Objection 3. Further, happiness is the most enduring good. Now this seems to be fame or glory; because by this men attain to eternity after a fashion. Hence Boethius says (De Consol. ii): "You seem to beget unto yourselves eternity, when you think of your fame in future time." Therefore man's happiness consists in fame or glory.

On the contrary, Happiness is man's true good. But it happens that fame or glory is false: for as Boethius says (De Consol. iii), "many owe their renown to the lying reports spread among the people. Can anything be more shameful? For those who receive false fame, must needs blush at their own praise." Therefore man's happiness does not consist in fame or glory.

I answer that, Man's happiness cannot consist in human fame or glory. For glory consists "in being well known and praised," as Ambrose [Augustine, Contra Maxim. Arian. ii, 13 says. Now the thing known is related to human knowledge otherwise than to God's knowledge: for human knowledge is caused by the things known, whereas God's knowledge is the cause of the things known. Wherefore the perfection of human good, which is called happiness, cannot be caused by human knowledge: but rather human knowledge of another's happiness proceeds from, and, in a fashion, is caused by, human happiness itself, inchoate or perfect. Consequently man's happiness cannot consist in fame or glory. On the other hand, man's good depends on God's knowledge as its cause. And therefore man's beatitude depends, as on its cause, on the glory which man has with God; according to Ps. 90:15,16: "I will deliver him, and I will glorify him; I will fill him with length of days, and I will show him my salvation."

Furthermore, we must observe that human knowledge often fails, especially in contingent singulars, such as are human acts. For this reason human glory is frequently deceptive. But since God cannot be deceived, His glory is always true; hence it is written (2 Cor. 10:18): "He . . . is approved . . . whom God commendeth."

Reply to Objection 1. The Apostle speaks, then, not of the glory which is with men, but of the glory which is from God, with His Angels. Hence it is written (Mk. 8:38): "The Son of Man shall confess him in the glory of His Father, before His angels" [St. Thomas joins Mk. 8:38 with Lk. 12:8 owing to a possible variant in his text, or to the fact that he was quoting from memory].

Reply to Objection 2. A man's good which, through fame or glory, is in the knowledge of many, if this knowledge be true, must needs be derived from good existing in the man himself: and hence it presupposes perfect or inchoate happiness. But if the knowledge be false, it does not harmonize with the thing: and thus good does not exist in him who is looked upon as famous. Hence it follows that fame can nowise make man happy.

Reply to Objection 3. Fame has no stability; in fact, it is easily ruined by false report. And if sometimes it endures, this is by accident. But happiness endures of itself, and for ever.


Summa Theologica I-II, 2, 4

Whether man's happiness consists in power?

Objection 1. It would seem that happiness consists in power. For all things desire to become like to God, as to their last end and first beginning. But men who are in power, seem, on account of the similarity of power, to be most like to God: hence also in Scripture they are called "gods" (Ex. 22:28), "Thou shalt not speak ill of the gods." Therefore happiness consists in power.

Objection 2. Further, happiness is the perfect good. But the highest perfection for man is to be able to rule others; which belongs to those who are in power. Therefore happiness consists in power.

Objection 3. Further, since happiness is supremely desirable, it is contrary to that which is before all to be shunned. But, more than aught else, men shun servitude, which is contrary to power. Therefore happiness consists in power.

On the contrary, Happiness is the perfect good. But power is most imperfect. For as Boethius says (De Consol. iii), "the power of man cannot relieve the gnawings of care, nor can it avoid the thorny path of anxiety": and further on: "Think you a man is powerful who is surrounded by attendants, whom he inspires with fear indeed, but whom he fears still more?"

I answer that, It is impossible for happiness to consist in power; and this for two reasons. First because power has the nature of principle, as is stated in Metaph. v, 12, whereas happiness has the nature of last end. Secondly, because power has relation to good and evil: whereas happiness is man's proper and perfect good. Wherefore some happiness might consist in the good use of power, which is by virtue, rather than in power itself.

Now four general reasons may be given to prove that happiness consists in none of the foregoing external goods. First, because, since happiness is man's supreme good, it is incompatible with any evil. Now all the foregoing can be found both in good and in evil men. Secondly, because, since it is the nature of happiness to "satisfy of itself," as stated in Ethic. i, 7, having gained happiness, man cannot lack any needful good. But after acquiring any one of the foregoing, man may still lack many goods that are necessary to him; for instance, wisdom, bodily health, and such like. Thirdly, because, since happiness is the perfect good, no evil can accrue to anyone therefrom. This cannot be said of the foregoing: for it is written (Eccles. 5:12) that "riches" are sometimes "kept to the hurt of the owner"; and the same may be said of the other three. Fourthly, because man is ordained to happiness through principles that are in him; since he is ordained thereto naturally. Now the four goods mentioned above are due rather to external causes, and in most cases to fortune; for which reason they are called goods of fortune. Therefore it is evident that happiness nowise consists in the foregoing.

Reply to Objection 1. God's power is His goodness: hence He cannot use His power otherwise than well. But it is not so with men. Consequently it is not enough for man's happiness, that he become like God in power, unless he become like Him in goodness also.

Reply to Objection 2. Just as it is a very good thing for a man to make good use of power in ruling many, so is it a very bad thing if he makes a bad use of it. And so it is that power is towards good and evil.

Reply to Objection 3. Servitude is a hindrance to the good use of power: therefore is it that men naturally shun it; not because man's supreme good consists in power.


Summa Theologica I-II, 2, 5

Whether man's happiness consists in any bodily good?

Objection 1. It would seem that man's happiness consists in bodily goods. For it is written (Sirach 30:16): "There is no riches above the riches of the health of the body." But happiness consists in that which is best. Therefore it consists in the health of the body.

Objection 2. Further, Dionysius says (Div. Nom. v), that "to be" is better than "to live," and "to live" is better than all that follows. But for man's being and living, the health of the body is necessary. Since, therefore, happiness is man's supreme good, it seems that health of the body belongs more than anything else to happiness.

Objection 3. Further, the more universal a thing is, the higher the principle from which it depends; because the higher a cause is, the greater the scope of its power. Now just as the causality of the efficient cause consists in its flowing into something, so the causality of the end consists in its drawing the appetite. Therefore, just as the First Cause is that which flows into all things, so the last end is that which attracts the desire of all. But being itself is that which is most desired by all. Therefore man's happiness consists most of all in things pertaining to his being, such as the health of the body.

On the contrary, Man surpasses all other animals in regard to happiness. But in bodily goods he is surpassed by many animals; for instance, by the elephant in longevity, by the lion in strength, by the stag in fleetness. Therefore man's happiness does not consist in goods of the body.

I answer that, It is impossible for man's happiness to consist in the goods of the body; and this for two reasons. First, because, if a thing be ordained to another as to its end, its last end cannot consist in the preservation of its being. Hence a captain does not intend as a last end, the preservation of the ship entrusted to him, since a ship is ordained to something else as its end, viz. to navigation. Now just as the ship is entrusted to the captain that he may steer its course, so man is given over to his will and reason; according to Sirach 15:14: "God made man from the beginning and left him in the hand of his own counsel." Now it is evident that man is ordained to something as his end: since man is not the supreme good. Therefore the last end of man's reason and will cannot be the preservation of man's being.

Secondly, because, granted that the end of man's will and reason be the preservation of man's being, it could not be said that the end of man is some good of the body. For man's being consists in soul and body; and though the being of the body depends on the soul, yet the being of the human soul depends not on the body, as shown above (I, 75, 2); and the very body is for the soul, as matter for its form, and the instruments for the man that puts them into motion, that by their means he may do his work. Wherefore all goods of the body are ordained to the goods of the soul, as to their end. Consequently happiness, which is man's last end, cannot consist in goods of the body.

Reply to Objection 1. Just as the body is ordained to the soul, as its end, so are external goods ordained to the body itself. And therefore it is with reason that the good of the body is preferred to external goods, which are signified by "riches," just as the good of the soul is preferred to all bodily goods.

Reply to Objection 2. Being taken simply, as including all perfection of being, surpasses life and all that follows it; for thus being itself includes all these. And in this sense Dionysius speaks. But if we consider being itself as participated in this or that thing, which does not possess the whole perfection of being, but has imperfect being, such as the being of any creature; then it is evident that being itself together with an additional perfection is more excellent. Hence in the same passage Dionysius says that things that live are better than things that exist, and intelligent better than living things.

Reply to Objection 3. Since the end corresponds to the beginning; this argument proves that the last end is the first beginning of being, in Whom every perfection of being is: Whose likeness, according to their proportion, some desire as to being only, some as to living being, some as to being which is living, intelligent and happy. And this belongs to few.


Summa Theologica I-II, 2, 6

Whether man's happiness consists in pleasure?

Objection 1. It would seem that man's happiness consists in pleasure. For since happiness is the last end, it is not desired for something else, but other things for it. But this answers to pleasure more than to anything else: "for it is absurd to ask anyone what is his motive in wishing to be pleased" (Ethic. x, 2). Therefore happiness consists principally in pleasure and delight.

Objection 2. Further, "the first cause goes more deeply into the effect than the second cause" (De Causis i). Now the causality of the end consists in its attracting the appetite. Therefore, seemingly that which moves most the appetite, answers to the notion of the last end. Now this is pleasure: and a sign of this is that delight so far absorbs man's will and reason, that it causes him to despise other goods. Therefore it seems that man's last end, which is happiness, consists principally in pleasure.

Objection 3. Further, since desire is for good, it seems that what all desire is best. But all desire delight; both wise and foolish, and even irrational creatures. Therefore delight is the best of all. Therefore happiness, which is the supreme good, consists in pleasure.

On the contrary, Boethius says (De Consol. iii): "Any one that chooses to look back on his past excesses, will perceive that pleasures had a sad ending: and if they can render a man happy, there is no reason why we should not say that the very beasts are happy too."

I answer that, Because bodily delights are more generally known, "the name of pleasure has been appropriated to them" (Ethic. vii, 13), although other delights excel them: and yet happiness does not consist in them. Because in every thing, that which pertains to its essence is distinct from its proper accident: thus in man it is one thing that he is a mortal rational animal, and another that he is a risible animal. We must therefore consider that every delight is a proper accident resulting from happiness, or from some part of happiness; since the reason that a man is delighted is that he has some fitting good, either in reality, or in hope, or at least in memory. Now a fitting good, if indeed it be the perfect good, is precisely man's happiness: and if it is imperfect, it is a share of happiness, either proximate, or remote, or at least apparent. Therefore it is evident that neither is delight, which results from the perfect good, the very essence of happiness, but something resulting therefrom as its proper accident.

But bodily pleasure cannot result from the perfect good even in that way. For it results from a good apprehended by sense, which is a power of the soul, which power makes use of the body. Now good pertaining to the body, and apprehended by sense, cannot be man's perfect good. For since the rational soul excels the capacity of corporeal matter, that part of the soul which is independent of a corporeal organ, has a certain infinity in regard to the body and those parts of the soul which are tied down to the body: just as immaterial things are in a way infinite as compared to material things, since a form is, after a fashion, contracted and bounded by matter, so that a form which is independent of matter is, in a way, infinite. Therefore sense, which is a power of the body, knows the singular, which is determinate through matter: whereas the intellect, which is a power independent of matter, knows the universal, which is abstracted from matter, and contains an infinite number of singulars. Consequently it is evident that good which is fitting to the body, and which causes bodily delight through being apprehended by sense, is not man's perfect good, but is quite a trifle as compared with the good of the soul. Hence it is written (Wis. 7:9) that "all gold in comparison of her, is as a little sand." And therefore bodily pleasure is neither happiness itself, nor a proper accident of happiness.

Reply to Objection 1. It comes to the same whether we desire good, or desire delight, which is nothing else than the appetite's rest in good: thus it is owing to the same natural force that a weighty body is borne downwards and that it rests there. Consequently just as good is desired for itself, so delight is desired for itself and not for anything else, if the preposition "for" denote the final cause. But if it denote the formal or rather the motive cause, thus delight is desirable for something else, i.e. for the good, which is the object of that delight, and consequently is its principle, and gives it its form: for the reason that delight is desired is that it is rest in the thing desired.

Reply to Objection 2. The vehemence of desire for sensible delight arises from the fact that operations of the senses, through being the principles of our knowledge, are more perceptible. And so it is that sensible pleasures are desired by the majority.

Reply to Objection 3. All desire delight in the same way as they desire good: and yet they desire delight by reason of the good and not conversely, as stated above (ad 1). Consequently it does not follow that delight is the supreme and essential good, but that every delight results from some good, and that some delight results from that which is the essential and supreme good.


Summa Theologica I-II, 2, 7

Whether some good of the soul constitutes man's happiness?

Objection 1. It would seem that some good of the soul constitutes man's happiness. For happiness is man's good. Now this is threefold: external goods, goods of the body, and goods of the soul. But happiness does not consist in external goods, nor in goods of the body, as shown above (4,5). Therefore it consists in goods of the soul.

Objection 2. Further, we love that for which we desire good, more than the good that we desire for it: thus we love a friend for whom we desire money, more than we love money. But whatever good a man desires, he desires it for himself. Therefore he loves himself more than all other goods. Now happiness is what is loved above all: which is evident from the fact that for its sake all else is loved and desired. Therefore happiness consists in some good of man himself: not, however, in goods of the body; therefore, in goods of the soul.

Objection 3. Further, perfection is something belonging to that which is perfected. But happiness is a perfection of man. Therefore happiness is something belonging to man. But it is not something belonging to the body, as shown above (05). Therefore it is something belonging to the soul; and thus it consists in goods of the soul.

On the contrary, As Augustine says (De Doctr. Christ. i, 22), "that which constitutes the life of happiness is to be loved for its own sake." But man is not to be loved for his own sake, but whatever is in man is to be loved for God's sake. Therefore happiness consists in no good of the soul.

I answer that, As stated above (1, 8), the end is twofold: namely, the thing itself, which we desire to attain, and the use, namely, the attainment or possession of that thing. If, then, we speak of man's last end, it is impossible for man's last end to be the soul itself or something belonging to it. Because the soul, considered in itself, is as something existing in potentiality: for it becomes knowing actually, from being potentially knowing; and actually virtuous, from being potentially virtuous. Now since potentiality is for the sake of act as for its fulfilment, that which in itself is in potentiality cannot be the last end. Therefore the soul itself cannot be its own last end.

In like manner neither can anything belonging to it, whether power, habit, or act. For that good which is the last end, is the perfect good fulfilling the desire. Now man's appetite, otherwise the will, is for the universal good. And any good inherent to the soul is a participated good, and consequently a portioned good. Therefore none of them can be man's last end.

But if we speak of man's last end, as to the attainment or possession thereof, or as to any use whatever of the thing itself desired as an end, thus does something of man, in respect of his soul, belong to his last end: since man attains happiness through his soul. Therefore the thing itself which is desired as end, is that which constitutes happiness, and makes man happy; but the attainment of this thing is called happiness. Consequently we must say that happiness is something belonging to the soul; but that which constitutes happiness is something outside the soul.

Reply to Objection 1. Inasmuch as this division includes all goods that man can desire, thus the good of the soul is not only power, habit, or act, but also the object of these, which is something outside. And in this way nothing hinders us from saying that what constitutes happiness is a good of the soul.

Reply to Objection 2. As far as the proposed objection is concerned, happiness is loved above all, as the good desired; whereas a friend is loved as that for which good is desired; and thus, too, man loves himself. Consequently it is not the same kind of love in both cases. As to whether man loves anything more than himself with the love of friendship there will be occasion to inquire when we treat of Charity.

Reply to Objection 3. Happiness, itself, since it is a perfection of the soul, is an inherent good of the soul; but that which constitutes happiness, viz. which makes man happy, is something outside his soul, as stated above.


Summa Theologica I-II, 2, 8

Whether any created good constitutes man's happiness?

Objection 1. It would seem that some created good constitutes man's happiness. For Dionysius says (Div. Nom. vii) that Divine wisdom "unites the ends of first things to the beginnings of second things," from which we may gather that the summit of a lower nature touches the base of the higher nature. But man's highest good is happiness. Since then the angel is above man in the order of nature, as stated in I, 111, 1, it seems that man's happiness consists in man somehow reaching the angel.

Objection 2. Further, the last end of each thing is that which, in relation to it, is perfect: hence the part is for the whole, as for its end. But the universe of creatures which is called the macrocosm, is compared to man who is called the microcosm (Phys. viii, 2), as perfect to imperfect. Therefore man's happiness consists in the whole universe of creatures.

Objection 3. Further, man is made happy by that which lulls his natural desire. But man's natural desire does not reach out to a good surpassing his capacity. Since then man's capacity does not include that good which surpasses the limits of all creation, it seems that man can be made happy by some created good. Consequently some created good constitutes man's happiness.

On the contrary, Augustine says (De Civ. Dei xix, 26): "As the soul is the life of the body, so God is man's life of happiness: of Whom it is written: 'Happy is that people whose God is the Lord' (Ps. 143:15)."

I answer that, It is impossible for any created good to constitute man's happiness. For happiness is the perfect good, which lulls the appetite altogether; else it would not be the last end, if something yet remained to be desired. Now the object of the will, i.e. of man's appetite, is the universal good; just as the object of the intellect is the universal true. Hence it is evident that naught can lull man's will, save the universal good. This is to be found, not in any creature, but in God alone; because every creature has goodness by participation. Wherefore God alone can satisfy the will of man, according to the words of Ps. 102:5: "Who satisfieth thy desire with good things." Therefore God alone constitutes man's happiness.

Reply to Objection 1. The summit of man does indeed touch the base of the angelic nature, by a kind of likeness; but man does not rest there as in his last end, but reaches out to the universal fount itself of good, which is the common object of happiness of all the blessed, as being the infinite and perfect good.

Reply to Objection 2. If a whole be not the last end, but ordained to a further end, then the last end of a part thereof is not the whole itself, but something else. Now the universe of creatures, to which man is compared as part to whole, is not the last end, but is ordained to God, as to its last end. Therefore the last end of man is not the good of the universe, but God himself.

Reply to Objection 3. Created good is not less than that good of which man is capable, as of something intrinsic and inherent to him: but it is less than the good of which he is capable, as of an object, and which is infinite. And the participated good which is in an angel, and in the whole universe, is a finite and restricted good.


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