This book investigates whether Aristotle's theory of ethical education is fundamentally incomplete without a rigorous integration of cognitive processes and practical reason. Nancy Sherman, a scholar of ancient philosophy, utilizes Aristotelian texts to argue that character excellence is not merely a matter of habituation but requires the active engagement of practical reason. She challenges traditional interpretations by demonstrating that moral perception and choicemaking are essential components of the virtuous life.

Scholars and students of ethics frequently cite this work as a significant contribution to the understanding of Aristotelian moral psychology. The text is noted for its ability to bridge the gap between ancient philosophical concepts and modern debates regarding the nature of practical reason.