Ancient Greece & Rome · 600 BC to Present · Soundness of Mind and Self-Mastery
Nothing in excess.Solon — Delphic Maxims, c. 600 BC
Sōphrosynē — translated variously as temperance, self-control, soundness of mind, or moderation — is one of the four cardinal virtues of ancient Greek ethics and perhaps the least well understood in contemporary life. "Nothing in excess" captures its spirit but not its depth. Sōphrosynē is not merely the avoidance of too much; it is the positive quality of a mind that is sound, ordered, and in right relation to itself — a mind that knows what it wants, why it wants it, and whether what it wants is genuinely worth wanting. The person with sōphrosynē is not deprived; they are free in a way that the person ruled by appetite is not.
Plato's Charmides is dedicated entirely to the question of what sōphrosynē is, and the dialogue ends without a definitive answer — which is itself a teaching. The virtue is subtle enough that the very attempt to grasp it reveals something about the nature of self-knowledge. In the Republic, Plato identifies sōphrosynē as the virtue of the third class of the soul — the appetitive part — when it is properly governed by reason and spirit. The well-ordered soul is the soul in which each part does its proper work, with appetite appropriately subordinate rather than either repressed or dominant.
Aristotle's treatment in the Nicomachean Ethics identifies sōphrosynē as the mean between licentiousness (indulgence of every appetite) and insensibility (inappropriate indifference to all pleasure). The temperate person takes appropriate pleasure in the right things at the right time — they are not monastically indifferent to the genuine pleasures of a human life, but neither are they driven by those pleasures in ways that undermine their judgment and character.
The Delphic maxims — "know thyself" and "nothing in excess" — frame the Greek philosophical project at its origins. Both are inscribed at the Oracle of Apollo at Delphi, and both point toward the same ideal: the person who knows themselves accurately will know what they genuinely need, and the person who knows what they genuinely need will not pursue excess. Sōphrosynē begins with self-knowledge and expresses itself as appropriate proportion.
In Plato's Symposium, Socrates embodies sōphrosynē through his relationship to pleasure and deprivation alike: he can drink all night at the symposium without becoming drunk while his companions collapse, and he can endure cold and hunger without complaint that others cannot manage. This is not mere physical endurance; it is the expression of a mind so well-ordered that external circumstances — either pleasant or unpleasant — have an unusually limited power to disturb it.
The concept found its way into Christian ethics through Thomas Aquinas's appropriation of the cardinal virtues, where temperance (Aquinas's translation of sōphrosynē) became the virtue that moderates the attraction of pleasures. But Aquinas, following Aristotle, was careful to note that sōphrosynē does not call for the elimination of pleasure — it calls for its right ordering. The person of genuine temperance is not joyless; they are capable of genuine enjoyment precisely because their enjoyment is not compulsive.
Temperance is simply a disposition of the mind which binds the passion.Thomas Aquinas — Summa Theologica, c. 1274