Thomas Aquinas

“ The love of truth demands a hallowed leisure; charity necessitates good works. If no one lays this burden on us we may devote ourselves to the study and contemplation of truth; but if the burden is laid on us it is to be taken up under the pressure of charity. ”

“ Consequently the exemplar of human virtue must needs pre-exist in God, just as in Him pre-exist the types of all things. Accordingly virtue may be considered as existing originally in God, and thus we speak of "exemplar" virtues: so that in God the Divine Mind itself may be called prudence; while temperance is the turning of God's gaze on Himself, even as in us it is that which conforms the appetite to reason. God's fortitude is His unchangeableness ”

“ Although the intellectual virtues, except in prudence, rank before the moral virtues, in the point of their subject, they do not rank before them as virtues; for a virtue, as such, regards good, which is the object of the appetite. ”

“ For temperance observes the mean in all things, and fortitude keeps the mind unbent by the enticements of pleasures, either in so far as these virtues are taken to denote certain general conditions of virtue, or in the sense that they overflow on to one another, as explained above. ”

“ On the other hand, the name virtue is applied to one that answers imperfectly to the idea of virtue, and does not require rectitude of the appetite: because it merely confers the faculty of doing well without causing the good deed to be done. Now it is evident that the perfect is principal as compared to the imperfect: and so those virtues which imply rectitude of the appetite are called principal virtues. ”

“ First, as existing in the very act of reason: and thus we have one principal virtue, called "Prudence." Secondly, according as the reason puts its order into something else; either into operations, and then we have "Justice"; or into passions, and then we need two virtues. For the need of putting the order of reason into the passions is due to their thwarting reason: and this occurs in two ways. First, by the passions inciting to something against reason, and then the passions need a curb, which we call "Temperance." ”

“ Again, temperance is said to be brave, by reason of fortitude overflowing into temperance: in so far, to wit, as he whose mind is strengthened by fortitude against dangers of death, which is a matter of very great difficulty, is more able to remain firm against the onslaught of pleasures ”

“ Perhaps one should make allowances for those who by reason of their exceptional talents have devoted themselves to learning; as also to those who have retired from public life on account of failing health, or for some other yet weightier motive; when such men yielded to others the power and renown of authority. ”

“ But the first of these seems to belong to prudence which is rectitude of reason in things to be done; the second, i.e. choice, belongs to temperance, whereby a man, holding his passions on the curb, acts, not from passion but from choice; the third, that a man should act for the sake of a due end, implies a certain rectitude, which seemingly belongs to justice; while the last, viz. firmness and steadfastness, belongs to fortitude. Therefore each of these virtues is general in comparison to other virtues. ”

“ Again, since man by his nature is a social [*See above note on Chrysostom] animal, these virtues, in so far as they are in him according to the condition of his nature, are called "social" virtues; since it is by reason of them that man behaves himself well in the conduct of human affairs. It is in this sense that we have been speaking of these virtues until now. ”

“ Such are the moral virtues, and prudence alone, of the intellectual virtues, for it is also something of a moral virtue, as was clearly shown above (Q [57] , A [4] ) . Consequently, those virtues which are called principal or cardinal are fittingly placed among the moral virtues.
Reply to Objection 1: When a univocal genus is divided into its species, the members of the division are on a par in the point of the generic idea; although considered in their nature as things, one species may surpass another in rank and perfection, as man in respect of other animals. ”

“ But when we divide an analogous term, which is applied to several things, but to one before it is applied to another, nothing hinders one from ranking before another, even in the point of the generic idea; as the notion of being is applied to substance principally in relation to accident. ”

“ Scip. 1) that the "social" virtues are those "whereby good men work for the good of their country and for the safety of the city." But it is only legal justice that is directed to the common weal, as the Philosopher states (Ethic. v, 1) . Therefore other virtues should not be called "social." ”