Couples are wholes and not wholes, what agrees disagrees, the concordant is discordant. From all things one and from one all things.

This saying is attributed to Heraclitus of Ephesus (late 6th–early 5th century BCE), a pre-Socratic philosopher known primarily through fragments preserved by later authors. It belongs to the cluster of Heraclitean remarks on the “unity of opposites” and the way a single ordered world emerges from tension and conflict. The fragment survives not as a continuous work by Heraclitus but via quotation in later compilations and commentaries, where it is used to illustrate his view that reality is dynamic and structured by opposing forces held in balance. Modern translations often render it in paradoxical, aphoristic form to reflect the original style.

The statement compresses Heraclitus’ idea that apparent contraries are interdependent aspects of one process. “Wholes and not wholes” suggests that things form unities yet remain divisible or internally conflicted; “what agrees disagrees” and “the concordant is discordant” point to harmony arising from tension rather than from sameness. The closing line—“from all things one and from one all things”—expresses a cosmological monism: the world is one ordered whole, yet it differentiates into the many. The quote thus challenges static, either/or thinking and presents reality as a coherent system whose stability depends on continual opposition and change.