Temperance disciplines all the human appetites. As a kind of temperance, chastity tempers in particular the part of human vitality related to our desire to reproduce and to experience companionship. Temperance moderates according to the dictates of reason, which is why Augustine calls chastity, or purity, “a virtue of the mind,”5 locating it in desire rather than action.6 Like temperance, chastity demands more than mere suppression or denial for healthy discipline. Chastity is the proper ordering of one good thing (sexual desire) within a hierarchy of other good things.

