Kitap 2
18
So it is with respect to the affections of the soul: when you have been angry, you must know that not only has this evil befallen you, but that you have also increased the habit, and in a manner thrown fuel upon fire. When you have been overcome in sexual intercourse with a person, do not reckon this single defeat only, but reckon that you have also nurtured, increased your incontinence. For it is impossible for habits and faculties, some of them not to be produced, when they did not exist before, and others not be increased and strengthened by corresponding acts.
