Aristotle’s Nicomachean Ethics, Book VII, treats “incontinence” (akrasia) and how curable its forms are. At the close of chapter 10 he cites the poet Evenus on “habit” and “nature”, after comparing the one who is incontinent “through habituation” with the one in whom it is “innate”. The lines are among the best known on the subject, and they sit here as the place where habit and nature are named together.
Read in contextOf the forms of incontinence, that of excitable people is more curable than that of those who deliberate but do not abide by their decisions, and those who are incontinent through habituation are more curable than those in whom incontinence is innate; for it is easier to change a habit than to change one’s nature; even habit is hard to change just because it is like nature, as Evenus says:
I say that habit’s but a long practice, friend,
And this becomes men’s nature in the end.
