Nicomachean Ethics
Euthyphro>Aristotle>
Branch Note:
Named after one of his students.
This is probably not something that Aristotle actually wrote. They are most likely the notes of a student.
Wrongdoing in Plato & Aristotle is always a function of irrationality.
(Side note - Alasdair MacIntyre - significant ethicist who has nearly single handedly restored Aristotelian ethics, separating him from being lumped together in with ... {After Virtue, Whose Justice? Which Rationality?, Three Rival Versions of Moral Inquiry} MacIntryre argues that rival ethical perspectives are incommensurable.)
Attached text:
"We have found, then, that the human function is activity of the soul in accord with reason or requiring reason."