Thomas Aquinas

“ Now for prudence to proceed aright, it is much more necessary that man be well disposed towards his ultimate end, which is the effect of charity, than that he be well disposed in respect of other ends, which is the effect of moral virtue: just as in speculative matters right reason has greatest need of the first indemonstrable principle, that "contradictories cannot both be true at the same time." It is therefore evident that neither can infused prudence be without charity; nor, consequently, the other moral virtues, since they cannot be without prudence. ”

“ For since virtue is directed to the doing of good works, perfect virtue is that which gives the faculty of doing a perfectly good work, and this consists in not only doing what is good, but also in doing it well. ”

“ An imperfect moral virtue, temperance for instance, or fortitude, is nothing but an inclination in us to do some kind of good deed, whether such inclination be in us by nature or by habituation. If we take the moral virtues in this way, they are not connected: since we find men who, by natural temperament or by being accustomed, are prompt in doing deeds of liberality, but are not prompt in doing deeds of chastity. ”

“ Now right choice requires not only the inclination to a due end, which inclination is the direct outcome of moral virtue, but also correct choice of things conducive to the end, which choice is made by prudence, that counsels, judges, and commands in those things that are directed to the end. ”

“ Because when, by practice, a man has acquired liberality in small gifts and expenditure, if he were to come in for a large sum of money, he would acquire the habit of magnificence with but little practice: even as a geometrician, by dint of little study, acquires scientific knowledge about some conclusion which had never been presented to his mind before. ”

“ Further, if the moral virtues are mutually connected, this can only be because they are united together in prudence. But this does not suffice to connect the moral virtues together. For, seemingly, one may be prudent about things to be done in relation to one virtue, without being prudent in those that concern another virtue: even as one may have the art of making certain things, without the art of making certain others. Now prudence is right reason about things to be done. Therefore the moral virtues are not necessarily connected with one another. ”

“ It would seem that faith and hope are never without charity. Because, since they are theological virtues, they seem to be more excellent than even the infused moral virtues. But the infused moral virtues cannot be without charity. Neither therefore can faith and hope be without charity. ”

“ In the same way, natural inclinations fail to have the complete character of virtue, if prudence be lacking.
But there are some moral virtues which perfect man with regard to some eminent state, such as magnificence and magnanimity; and since it does not happen to all in common to be exercised in the matter of such virtues, it is possible for a man to have the other moral virtues, without actually having the habits of these virtues---provided we speak of acquired virtue. Nevertheless, when once a man has acquired those other virtues he possesses these in proximate potentiality. ”

“ For, since the act of faith is to believe in God; and since to believe is to assent to someone of one's own free will: to will not as one ought, will not be a perfect act of faith. To will as one ought is the outcome of charity which perfects the will: since every right movement of the will proceeds from a right love, as Augustine says (De Civ. Dei xiv, 9) . Hence faith may be without charity, but not as a perfect virtue: just as temperance and fortitude can be without prudence. The same applies to hope. Because the act of hope consists in looking to God for future bliss. ”

“ Further, he that has a habit of virtue easily performs the works of that virtue, and those works are pleasing to him for their own sake: hence "pleasure taken in a work is a sign of habit" (Ethic. ii, 3) . Now many have charity, being free from mortal sin, and yet they find it difficult to do works of virtue; nor are these works pleasing to them for their own sake, but only for the sake of charity. Therefore many have charity without the other virtues. ”

“ It happens sometimes that a man who has a habit, finds it difficult to act in accordance with the habit, and consequently feels no pleasure and complacency in the act, on account of some impediment supervening from without: thus a man who has a habit of science, finds it difficult to understand, through being sleepy or unwell. ”

“ Hence we do not observe in them the connection that is to be found among the moral virtues, which are about passions and operations, that are clearly related to one another. For all the passions have their rise in certain initial passions, viz. love and hatred, and terminate in certain others, viz. pleasure and sorrow. In like manner all the operations that are the matter of moral virtue are related to one another, and to the passions. Hence the whole matter of moral virtues falls under the one rule of prudence. ”

“ But if he exercise himself by good deeds in regard to one matter, but not in regard to another, for instance, by behaving well in matters of anger, but not in matters of concupiscence; he will indeed acquire a certain habit of restraining his anger; but this habit will lack the nature of virtue, through the absence of prudence, which is wanting in matters of concupiscence. ”

“ Reply to Objection 1: Virtue, in the words quoted, denotes imperfect virtue. Else if we take moral virtue in its perfect state, "it makes its possessor good," and consequently cannot be in the wicked. ”