Objection 3: Further, action is pleasant through proceeding from an innate habit; hence it is stated in Ethic. ii, 3 that "we must reckon the pleasure which follows after action, as being the sign of a habit existing in us." But the actions of others do not proceed from habits existing in us, but, sometimes, from habits existing in the agents. Therefore the actions of others are not pleasing to us, but to the agents themselves.
On the contrary, It is written in the second canonical epistle of John (verse 4): "I was exceeding glad that I found thy children walking in truth."
I answer that, As stated above (A[1]; Q[31], A[1]), two things are requisite for pleasure, namely, the attainment of one's proper good, and the knowledge of having obtained it. Wherefore the action of another may cause pleasure to us in three ways. First, from the fact that we obtain some good through the action of another. And in this way, the actions of those who do some good to us, are pleasing to us: since it is pleasant to be benefited by another. Secondly, from the fact that another's action makes us to know or appreciate our own good: and for this reason men take pleasure in being praised or honored by others, because, to wit, they thus become aware of some good existing in themselves. And since this appreciation receives greater weight from the testimony of good and wise men, hence men take greater pleasure in being praised and honored by them. And because a flatterer appears to praise, therefore flattery is pleasing to some. And as love is for something good, while admiration is for something great, so it is pleasant to be loved and admired by others, inasmuch as a man thus becomes aware of his own goodness or greatness, through their giving pleasure to others. Thirdly, from the fact that another's actions, if they be good, are reckoned as one's own good, by reason of the power of love, which makes a man to regard his friend as one with himself. And on account of hatred, which makes one to reckon another's good as being in opposition to oneself, the evil action of an enemy becomes an object of pleasure: whence it is written ( 1 Cor. 13:6 ) that charity "rejoiceth not in iniquity, but rejoiceth with the truth."
Reply to Objection 1: Another's action may be conjoined to me, either by its effect, as in the first way, or by knowledge, as in the second way; or by affection, as in the third way.
Reply to Objection 2: This argument avails for the third mode, but not for the first two.
Reply to Objection 3: Although the actions of another do not proceed from habits that are in me, yet they either produce in me something that gives pleasure; or they make me appreciate or know a habit of mind; or they proceed from the habit of one who is united to me by love.
Whether doing good to another is a cause of pleasure?
Objection 1: It would seem that doing good to another is not a cause of pleasure. Because pleasure is caused by one's obtaining one's proper good, as stated above (AA[1],5; Q[31], A[1]). But doing good pertains not to the obtaining but to the spending of one's proper good. Therefore it seems to be the cause of sadness rather than of pleasure.
Objection 2: Further, the Philosopher says (Ethic. iv, 1) that "illiberality is more connatural to man than prodigality." Now it is a mark of prodigality to do good to others; while it is a mark of illiberality to desist from doing good. Since therefore everyone takes pleasure in a connatural operation, as stated in Ethic. vii, 14 and x, 4, it seems that doing good to others is not a cause of pleasure.
Objection 3: Further, contrary effects proceed from contrary causes. But man takes a natural pleasure in certain kinds of ill-doing, such as overcoming, contradicting or scolding others, or, if he be angry, in punishing them, as the Philosopher says (Rhet. i, 11). Therefore doing good to others is a cause of sadness rather than pleasure.
On the contrary, The Philosopher says (Polit. ii, 2) that "it is most pleasant to give presents or assistance to friends and strangers."
I answer that, Doing good to another may give pleasure in three ways. First, in consideration of the effect, which is the good conferred on another. In this respect, inasmuch as through being united to others by love, we look upon their good as being our own, we take pleasure in the good we do to others, especially to our friends, as in our own good. Secondly, in consideration of the end; as when a man, from doing good to another, hopes to get some good for himself, either from God or from man: for hope is a cause of pleasure. Thirdly, in consideration of the principle: and thus, doing good to another, can give pleasure in respect of a threefold principle. One is the faculty of doing good: and in this regard, doing good to another becomes pleasant, in so far as it arouses in man an imagination of abundant good existing in him, whereof he is able to give others a share. Wherefore men take pleasure in their children, and in their own works, as being things on which they bestow a share of their own good. Another principle is man's habitual inclination to do good, by reason of which doing good becomes connatural to him: for which reason the liberal man takes pleasure in giving to others. The third principle is the motive: for instance when a man is moved by one whom he loves, to do good to someone: for whatever we do or suffer for a friend is pleasant, because love is the principal cause of pleasure.
Reply to Objection 1: Spending gives pleasure as showing forth one's good. But in so far as it empties us of our own good it may be a cause of sadness; for instance when it is excessive.
Reply to Objection 2: Prodigality is an excessive spending, which is unnatural: wherefore prodigality is said to be contrary to nature.
Reply to Objection 3: To overcome, to contradict, and to punish, give pleasure, not as tending to another's ill, but as pertaining to one's own good, which man loves more than he hates another's ill. For it is naturally pleasant to overcome, inasmuch as it makes a man to appreciate his own superiority. Wherefore all those games in which there is a striving for the mastery, and a possibility of winning it, afford the greatest pleasure: and speaking generally all contests, in so far as they admit hope of victory. To contradict and to scold can give pleasure in two ways. First, as making man imagine himself to be wise and excellent; since it belongs to wise men and elders to reprove and to scold. Secondly, in so far as by scolding and reproving, one does good to another: for this gives one pleasure, as stated above. It is pleasant to an angry man to punish, in so far as he thinks himself to be removing an apparent slight, which seems to be due to a previous hurt: for when a man is hurt by another, he seems to be slighted thereby; and therefore he wishes to be quit of this slight by paying back the hurt. And thus it is clear that doing good to another may be of itself pleasant: whereas doing evil to another is not pleasant, except in so far as it seems to affect one's own good.
Whether likeness is a cause of pleasure?
Objection 1: It would seem that likeness is not a cause of pleasure. Because ruling and presiding seem to imply a certain unlikeness. But "it is natural to take pleasure in ruling and presiding," as stated in Rhetor. i, 11. Therefore unlikeness, rather than likeness, is a cause of pleasure.
Objection 2: Further, nothing is more unlike pleasure than sorrow. But those who are burdened by sorrow are most inclined to seek pleasures, as the Philosopher says (Ethic. vii, 14). Therefore unlikeness, rather than likeness, is a cause of pleasure.
Objection 3: Further, those who are satiated with certain delights, derive not pleasure but disgust from them; as when one is satiated with food. Therefore likeness is not a cause of pleasure.
On the contrary, Likeness is a cause of love, as above stated (Q[27], A[3]): and love is the cause of pleasure. Therefore likeness is a cause of pleasure.
I answer that, Likeness is a kind of unity; hence that which is like us, as being one with us, causes pleasure; just at it causes love, as stated above (Q[27], A[3]). And if that which is like us does not hurt our own good, but increase it, it is pleasurable simply; for instance one man in respect of another, one youth in relation to another. But if it be hurtful to our own good, thus accidentally it causes disgust or sadness, not as being like and one with us, but as hurtful to that which is yet more one with us.
Now it happens in two ways that something like is hurtful to our own good. First, by destroying the measure of our own good, by a kind of excess; because good, especially bodily good, as health, is conditioned by a certain measure: wherefore superfluous good or any bodily pleasure, causes disgust. Secondly, by being directly contrary to one's own good: thus a potter dislikes other potters, not because they are potters, but because they deprive him of his own excellence or profits, which he seeks as his own good.
Reply to Objection 1: Since ruler and subject are in communion with one another, there is a certain likeness between them: but this likeness is conditioned by a certain superiority, since ruling and presiding pertain to the excellence of a man's own good: because they belong to men who are wise and better than others; the result being that they give man an idea of his own excellence. Another reason is that by ruling and presiding, a man does good to others, which is pleasant.
Reply to Objection 2: That which gives pleasure to the sorrowful man, though it be unlike sorrow, bears some likeness to the man that is sorrowful: because sorrows are contrary to his own good. Wherefore the sorrowful man seeks pleasure as making for his own good, in so far as it is a remedy for its contrary. And this is why bodily pleasures, which are contrary to certain sorrows, are more sought than intellectual pleasures, which have no contrary sorrow, as we shall state later on (Q[35], A[5]). And this explains why all animals naturally desire pleasure: because animals ever work through sense and movement. For this reason also young people are most inclined to seek pleasures; on account of the many changes to which they are subject, while yet growing. Moreover this is why the melancholic has a strong desire for pleasures, in order to drive away sorrow: because his "body is corroded by a base humor," as stated in Ethic. vii, 14.
Reply to Objection 3: Bodily goods are conditioned by a certain fixed measure: wherefore surfeit of such things destroys the proper good, and consequently gives rise to disgust and sorrow, through being contrary to the proper good of man.