Now the difficult and the good (which amount to the same) in an act of virtue may be considered from two points of view. First, from the point of view of reason, in so far as it is difficult to find and establish the rational means in some particular matter: and this difficulty is found only in the act of intellectual virtues, and also of justice. The other difficulty is on the part of the matter, which may involve a certain opposition to the moderation of reason, which moderation has to be applied thereto: and this difficulty regards chiefly the other moral virtues, which are about the passions, because the passions resist reason as Dionysius states (Div. Nom. iv, 4).
Now as regards the passions it is to be observed that the greatness of this power of resistance to reason arises chiefly in some cases from the passions themselves, and in others from the things that are the objects of the passions. The passions themselves have no great power of resistance, unless they be violent, because the sensitive appetite, which is the seat of the passions, is naturally subject to reason. Hence the resisting virtues that are about these passions regard only that which is great in such passions: thus fortitude is about very great fear and daring; temperance about the concupiscence of the greatest pleasures, and likewise meekness about the greatest anger. On the other hand, some passions have great power of resistance to reason arising from the external things themselves that are the objects of those passions: such are the love or desire of money or of honor. And for these it is necessary to have a virtue not only regarding that which is greatest in those passions, but also about that which is ordinary or little: because things external, though they be little, are very desirable, as being necessary for human life. Hence with regard to the desire of money there are two virtues, one about ordinary or little sums of money, namely liberality, and another about large sums of money, namely "magnificence."
In like manner there are two virtues about honors, one about ordinary honors. This virtue has no name, but is denominated by its extremes, which are philotimia, i.e. love of honor, and aphilotimia, i.e. without love of honor: for sometimes a man is commended for loving honor, and sometimes for not caring about it, in so far, to wit, as both these things may be done in moderation. But with regard to great honors there is magnanimity. Wherefore we must conclude that the proper matter of magnanimity is great honor, and that a magnanimous man tends to such things as are deserving of honor.
Reply Obj. 1: Great and little are accidental to honor considered in itself: but they make a great difference in their relation to reason, the mode of which has to be observed in the use of honor, for it is much more difficult to observe it in great than in little honors.
Reply Obj. 2: In anger and other matters only that which is greatest presents any notable difficulty, and about this alone is there any need of a virtue. It is different with riches and honors which are things existing outside the soul.
Reply Obj. 3: He that makes good use of great things is much more able to make good use of little things. Accordingly the magnanimous man looks upon great honors as a thing of which he is worthy, or even little honors as something he deserves, because, to wit, man cannot sufficiently honor virtue which deserves to be honored by God. Hence he is not uplifted by great honors, because he does not deem them above him; rather does he despise them, and much more such as are ordinary or little. In like manner he is not cast down by dishonor, but despises it, since he recognizes that he does not deserve it. _______________________
THIRD ARTICLE [II-II, Q. 129, Art. 3]
Whether Magnanimity Is a Virtue?
Objection 1: It seems that magnanimity is not a virtue. For every moral virtue observes the mean. But magnanimity observes not the mean but the greater extreme: because the "magnanimous man deems himself worthy of the greatest things" (Ethic. iv, 3). Therefore magnanimity is not a virtue.
Obj. 2: Further, he that has one virtue has them all, as stated above (I-II, Q. 65, A. 1). But one may have a virtue without having magnanimity: since the Philosopher says (Ethic. iv, 3) that "whosoever is worthy of little things and deems himself worthy of them, is temperate, but he is not magnanimous." Therefore magnanimity is not a virtue.