ἀρετή

Arete (ἀρετή) derives from the same root as Ares (the god of war) and aristos (best, the root of 'aristocracy') — a root cluster associated with fitness, power, and excellence in its most active, embodied sense. The noun suffix -te converts this root into an abstract quality: arete is whatever constitutes the excellence, the best functioning, the optimal condition of any given thing. A knife's arete is sharpness; a horse's arete is speed and stamina; an eye's arete is acute vision. In every case, arete names the quality whose presence makes a thing fully what it is and able to do what it is for. When Greek philosophers applied this concept to human beings, they were asking: what is the characteristic excellence of the human animal? What constitutes a human being functioning at their best?

For the Homeric Greeks — the culture depicted in the Iliad and Odyssey — arete was predominantly aristocratic and martial: the excellence of the warrior class, which consisted in courage, strength, skill in battle, and the honor (time) that publicly acknowledged these qualities. Achilles is the Homeric type of arete: incomparable in battle, driven by a fierce sense of personal excellence and its proper recognition. This conception made arete visible and publicly validated — it was demonstrated on the battlefield, acknowledged by the community, and inseparable from reputation. There was no Homeric concept of hidden virtue or privately excellent character: arete that no one witnessed or acknowledged was hardly arete at all.

The philosophical transformation of arete is largely the work of Socrates and Plato. Socrates argued that the conventional aristocratic and martial conception of arete was confused and inadequate: true human excellence had to involve knowledge of the good, because a person who acts excellently without understanding why cannot reliably do so. His famous paradox — that no one errs willingly, that all wrongdoing is a form of ignorance — grounds a conception of arete that is inseparable from knowledge. Plato extended this into his theory of the four cardinal virtues (prudence, justice, courage, temperance) understood as forms of the soul's proper ordering, and his metaphysics of the Form of the Good as the ultimate object of philosophical knowledge. Aristotle then corrected both: for him, arete required both right reasoning and right desire — knowledge of the good was insufficient if the emotions and appetites were not also trained to support virtuous action.

The translation of arete as 'virtue' — a word whose English connotations are now largely moralistic and associated with sexual purity and prim propriety — has done considerable violence to the Greek concept. The Victorian sense of virtue, with its associations of temperance, feminine chastity, and sanctimoniousness, could not be further from what Achilles embodies or what Aristotle analyzed. The philosopher Robert Pirsig, in Zen and the Art of Motorcycle Maintenance (1974), used arete as one of his central terms, arguing that Quality — the excellence that distinguishes good work from bad in any domain — was the concept the Greeks meant by arete and that contemporary culture had lost. His use reflects something genuine: arete is a standard of excellence that applies across all domains of human activity and resists reduction to moral rule-following.