Aristotle on Happiness as Eudaimonia: The Final, Self-Sufficient Good

Context

The passage sits near the end of the opening argument of the Nicomachean Ethics, the lecture-based treatise Aristotle composed in the fourth century BCE and named after his son Nicomachus. Book I begins with a deceptively simple observation: every art, inquiry, action, and pursuit aims at some good. Medicine aims at health, shipbuilding at a seaworthy vessel, strategy at victory. The question Aristotle sets himself is whether there is a single good that all these subordinate aims ultimately serve — something chosen always for its own sake and never for the sake of something else.

By the time he reaches Bekker 1097b, he has narrowed the candidates. Pleasure, honor, and wealth are all rejected, because each can be sought for the sake of a further end. People pursue wealth to buy security, honor to feel admired, and neither can serve as the ultimate anchor of a life. Happiness is different. Nobody asks what happiness is for. It is the one thing that is chosen for itself alone, and when it is present, nothing further seems to be missing. The sentence quoted above is Aristotle's compact statement of that conclusion: happiness is final and self-sufficient, the end of action.

The definition is not the end of the argument but its beginning. In the chapters that follow, Aristotle goes on to identify happiness with the activity of the rational soul in accordance with virtue, and to insist that it must stretch over a complete life — "one swallow does not make a summer," as he puts it. The sentence at 1097b21 is the hinge: once happiness is fixed as the final and self-sufficient end, everything else in the ethics hangs from it.

Significance

This sentence fixes the meaning of eudaimonia, the Greek word usually translated "happiness" but better rendered "human flourishing," and it quietly transforms how the West thinks about the good life. Aristotle does not treat happiness as a feeling, a mood, or a stroke of luck. He treats it as an objective condition of a whole life, one that depends on what a person does and becomes rather than on what merely happens to them. That single move separates his ethics from every form of hedonism that equates the good life with pleasant experience, and it explains why later traditions — the Stoics, the medieval scholastics, the modern virtue ethicists — keep returning to his framework.

The claim that happiness is self-sufficient also carries a quieter implication. If the good life depends on the excellent exercise of one's capacities, then the community has a stake in whether its citizens can develop those capacities, and the individual has a reason to care about the structure of the society in which they live. Aristotle draws this thread out in the Politics, where the best constitution is the one that enables citizens to live well.

Modern research has rediscovered much of this. The science of well-being distinguishes evaluative judgments about a life from momentary feeling, in much the way Aristotle distinguished eudaimonia from pleasure. Positive psychology's account of flourishing — Seligman's PERMA model of positive emotion, engagement, relationships, meaning, and achievement — is recognizably Aristotelian in its insistence that a good life is an active, structured achievement rather than a passive sensation. Read alongside the rest of Book I, this sentence becomes the anchor of the entire philosophy of eudaimonia.

Related Learning

• Explore what is eudaimonia and the difference between hedonism and eudaimonia.
• Read Aristotle's fuller definition in happiness as activity of soul and the opening of the Ethics.
• Continue with the philosophy of eudaimonia, the concept of eudaimonia as wisdom, and the Happiness & The Good Life learning path.

Sources

1. Aristotle. Nicomachean Ethics. Translated by W. D. Ross. Oxford: Oxford University Press, 1925. 1097b21.
2. "Aristotle's Ethics." Stanford Encyclopedia of Philosophy. https://plato.stanford.edu/entries/aristotle-ethics/
3. "Happiness." Stanford Encyclopedia of Philosophy. https://plato.stanford.edu/entries/happiness/