The classic discussion is Book 7 of Aristotle’s Nicomachaean Ethics, in which he distinguishes incontinence from intemperance. Incontinent people are impetuous, or weak. They know what they should do, but succumb to temptation, being carried away by their passions. Intemperate people on the other hand do wrong deliberately. They have an incorrect notion of the proper ends of human action. They are less prone to remorse, and less curable, than incontinent ones. See also akrasia, seven deadly sins, virtue.