Aristotle's Ethics Summary

Jun 21, 2025

Overview

This lecture summarizes Books 1 and 2 of Aristotle's "Nicomachean Ethics," focusing on his approach to ethics, definitions of happiness, and the nature of virtue.

Aristotle's Approach to Ethics

  • "Nicomachean Ethics" consists of 10 books originally written on separate scrolls.
  • Aristotle aims for a practical guide to ethical living, not just theory.
  • Ethics, for Aristotle, allows for broad generalizations due to the uncertainty of its premises.
  • The highest good, or ultimate goal, is central to Aristotle’s ethical inquiry.

Definitions and Types of Happiness

  • Aristotle identifies happiness as the ultimate goal of human life.
  • He outlines three common definitions of happiness: pleasure (enjoyment), honor and virtue (political life), and contemplation.
  • Aristotle rejects the life of pleasure as vulgar and inadequate.
  • He doubts that honor and virtue alone guarantee happiness.
  • Aristotle considers the life of contemplation the best path, explaining it more fully in later books.

First Principles and Assumptions

  • Aristotle assumes readers already understand basic moral principles ("first principles").
  • He does not aim to prove that happiness is good, presuming this is already accepted.
  • His focus remains on practical application rather than foundational justification.

The Nature of Good and Happiness

  • Aristotle distinguishes between goods for their own sake and goods as means to an end.
  • The ultimate good is that which is always chosen for its own sake and never as a means—happiness.
  • All actions aim at happiness, making it the highest good.

Virtue and Living Well

  • Living well means living in accordance with excellence (virtue) in all activities.
  • Moral excellence is synonymous with living virtuously.
  • Wealth, friends, and material possessions are valuable because they enable virtuous actions.
  • Possessing resources can help one perform nobler and more virtuous deeds.

Key Terms & Definitions

  • Nicomachean Ethics — Aristotle's landmark work on ethics.
  • First Principles — Basic moral assumptions or foundational truths not proved within the work.
  • Virtue — Excellence in activity, especially moral conduct.
  • Happiness (Eudaimonia) — The highest good; living and acting in accordance with virtue.

Action Items / Next Steps

  • Review Aristotle’s Book 2 discussion on practical virtue and the virtuous life.