From Aristotle (Nicomachean Ethics, 1151a6-11 [trans. Joe Sachs]):
It is clear then that unrestraint is not vice . . . since the one [dissipation] is by choice and the other [unrestraint] is contrary to choice; however, they are alike as far as actions are concerned, as with the words of Demodocus to the Milesians, "It's not that Milesians are stupid, just that they will do the sort of things that stupid people do"; and while unrestrained people are not unjust, they will do injustice.