Aristotle's moral philosophy and moral psychology a basic terminology

Abstract

Cicero's De officiis and Aristotle's Nicomachean Ethics have influenced the history of moral philosophy like no other work. In contrast to Cicero, Aristotle developed a differentiated terminology of moral psychology which was later extended most notably by Thomas Aquinas. Therefore, it is justified to take the terms and theses of the Nicomachean Ethics as a starting point in a discussion about the relation between psychology and ethics.