(10) Whether it makes use of anger in its action?
(11) Whether it is a cardinal virtue?
(12) Of its comparison with the other cardinal virtues. _______________________
FIRST ARTICLE [II-II, Q. 123, Art. 1]
Whether Fortitude Is a Virtue?
Objection 1: It seems that fortitude is not a virtue. For the Apostle says (2 Cor. 12:9): "Virtue is perfected in infirmity." But fortitude is contrary to infirmity. Therefore fortitude is not a virtue.
Obj. 2: Further, if it is a virtue, it is either theological, intellectual, or moral. Now fortitude is not contained among the theological virtues, nor among the intellectual virtues, as may be gathered from what we have said above (I-II, Q. 57, A. 2; Q. 62, A. 3). Neither, apparently, is it contained among the moral virtues, since according to the Philosopher (Ethic. iii, 7, 8): "Some seem to be brave through ignorance; or through experience, as soldiers," both of which cases seem to pertain to act rather than to moral virtue, "and some are called brave on account of certain passions"; for instance, on account of fear of threats, or of dishonor, or again on account of sorrow, anger, or hope. But moral virtue does not act from passion but from choice, as stated above (I-II, Q. 55, A. 4). Therefore fortitude is not a virtue.
Obj. 3: Further, human virtue resides chiefly in the soul, since it is a "good quality of the mind," as stated above (Ethic. iii, 7, 8). But fortitude, seemingly, resides in the body, or at least results from the temperament of the body. Therefore it seems that fortitude is not a virtue.
On the contrary, Augustine (De Morib. Eccl. xv, xxi, xxii) numbers fortitude among the virtues.
I answer that, According to the Philosopher (Ethic. ii, 6) "virtue is that which makes its possessor good, and renders his work good." Hence human virtue, of which we are speaking now, is that which makes a man good, and renders his work good. Now man's good is to be in accordance with reason, according to Dionysius (Div. Nom. iv, 22). Wherefore it belongs to human virtue to make man good, to make his work accord with reason. This happens in three ways: first, by rectifying reason itself, and this is done by the intellectual virtues; secondly, by establishing the rectitude of reason in human affairs, and this belongs to justice; thirdly, by removing the obstacles to the establishment of this rectitude in human affairs. Now the human will is hindered in two ways from following the rectitude of reason. First, through being drawn by some object of pleasure to something other than what the rectitude of reason requires; and this obstacle is removed by the virtue of temperance. Secondly, through the will being disinclined to follow that which is in accordance with reason, on account of some difficulty that presents itself. In order to remove this obstacle fortitude of the mind is requisite, whereby to resist the aforesaid difficulty even as a man, by fortitude of body, overcomes and removes bodily obstacles.