The subjective parts of a virtue are its species: and the species of a virtue have to be differentiated according to the difference of matter or object. Now temperance is about pleasures of touch, which are of two kinds. For some are directed to nourishment: and in these as regards meat, there is abstinence, and as regards drink properly there is sobriety. Other pleasures are directed to the power of procreation, and in these as regards the principal pleasure of the act itself of procreation, there is chastity, and as to the pleasures incidental to the act, resulting, for instance, from kissing, touching, or fondling, we have purity.
The potential parts of a principal virtue are called secondary virtues: for while the principal virtue observes the mode in some principal matter, these observe the mode in some other matter wherein moderation is not so difficult. Now it belongs to temperance to moderate pleasures of touch, which are most difficult to moderate. Wherefore any virtue that is effective of moderation in some matter or other, and restrains the appetite in its impulse towards something, may be reckoned a part of temperance, as a virtue annexed thereto.
This happens in three ways: first, in the inward movements of the soul; secondly, in the outward movements and actions of the body; thirdly, in outward things. Now besides the movement of concupiscence, which temperance moderates and restrains, we find in the soul three movements towards a particular object. In the first place there is the movement of the will when stirred by the impulse of passion: and this movement is restrained by continence, the effect of which is that, although a man suffer immoderate concupiscences, his will does not succumb to them. Another inward movement towards something is the movement of hope, and of the resultant daring, and this is moderated or restrained by humility. The third movement is that of anger, which tends towards revenge, and this is restrained by meekness or mildness.
With regard to bodily movements and actions, moderation and restraint is the effect of modesty, which, according to Andronicus, has three parts. The first of these enables one to discern what to do and what not to do, and to observe the right order, and to persevere in what we do: this he assigns to method. The second is that a man observe decorum in what he does, and this he ascribes to refinement. The third has to do with the conversation or any other intercourse between a man and his friends, and this is called gravity.
With regard to external things, a twofold moderation has to be observed. First, we must not desire too many, and to this Macrobius assigns lowliness, and Andronicus contentment; secondly, we must not be too nice in our requirements, and to this Macrobius ascribes moderation, Andronicus simplicity.
Reply Obj. 1: It is true that continence differs from virtue, just as imperfect differs from perfect, as we shall state further on (Q. 165, A. 1); and in this sense it is condivided with virtue. Yet it has something in common with temperance both as to matter, since it is about pleasures of touch, and as to mode, since it is a kind of restraint. Hence it is suitably assigned as a part of temperance.
Reply Obj. 2: Mildness or meekness is reckoned a part of temperance not because of a likeness of matter, but because they agree as to the mode of restraint and moderation as stated above.
Reply Obj. 3: In the matter of external action justice considers what is due to another. Modesty does not consider this, but only a certain moderation. Hence it is reckoned a part not of justice but of temperance.
Reply Obj. 4: Under modesty Tully includes whatever pertains to the moderation of bodily movements and external things, as well as the moderation of hope which we reckoned as pertaining to humility. _______________________