Ancient Greece & Rome · 800 BC to Present · The Full Expression of One's Nature
Excellence is never an accident. It is always the result of high intention, sincere effort, and intelligent execution; it represents the wise choice of many alternatives.Aristotle — Nicomachean Ethics, 350 BC
Aretē — translated as excellence, virtue, or the full expression of one's nature — is one of the most important concepts in ancient Greek ethics and the foundation on which Aristotle built his entire account of the good human life. The word does not mean merely moral virtue in the narrow contemporary sense; it means the fullest possible realization of what a thing essentially is. The aretē of a knife is being maximally sharp. The aretē of a horse is being maximally suited to the purposes of a horse — swift, strong, sound. The aretē of a human being is the full expression of what is distinctively human: rational activity in accordance with virtue, sustained over a complete life.
This account has a crucial implication: excellence is not a fixed standard but a function of the thing's nature. The excellent human being is not a copy of some pre-specified ideal; they are the fullest possible realization of their own particular capacities, developed through sustained effort, shaped by good habits, and expressed through virtuous activity over time. Aristotle explicitly rejects the notion that excellence is innate or fixed. It is developed. We become excellent by repeatedly doing excellent things, and the capacity for excellence deepens through practice.
The concept of aretē is not merely historical. It is the philosophical foundation of every practice that asks: what does it mean to do this as well as it can be done? Every craftsperson who refuses to deliver work that falls below their standard, every athlete who trains to the edge of their capacity, every teacher who prepares their classes as carefully on the hundredth iteration as on the first — these people are living the aretē ideal without necessarily naming it as such.
In the Homeric epics, aretē referred primarily to the excellence of warriors and aristocrats: courage, strength, skill in battle, and the glory that these qualities earned. By the time of the classical philosophers, the concept had been dramatically extended. Socrates and Plato argued that the highest form of aretē was moral and intellectual — the excellence of the soul rather than the body — and that physical courage without wisdom and justice was not genuine excellence at all. Aristotle synthesized these accounts into his comprehensive account of human flourishing.
The concept of aretē influenced the Roman ideal of virtus — etymologically "the quality of a man" — which in turn gave English the word "virtue." The full force of the Greek original is somewhat lost in this translation: aretē is not primarily about moral correctness but about the full development of genuine capacities. The excellent person is not merely someone who avoids wrongdoing; they are someone who actively develops and expresses the highest capabilities that human nature makes possible.
Maslow's concept of self-actualization is the twentieth-century psychological version of aretē: the drive to become what one is capable of being, to express fully the capacities that define one's particular nature. Like aretē, self-actualization is not a fixed destination but a direction — a constant movement toward the full expression of potential that no one completely achieves but that gives human life its deepest motivational structure.
We are what we repeatedly do. Excellence, then, is not an act but a habit.Aristotle — Nicomachean Ethics, 350 BC