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Wellsprings
metaphysics

The One and the Many

ἓν καὶ πολλά

How can reality be a single whole and also countless separate things? This riddle launched Greek metaphysics and never let it go.

Look around and you see a world of many things; yet thinkers since Parmenides suspected that beneath the plurality lies a deeper unity. The puzzle is how one and many can coexist: how a single thing has many parts or properties, how many individuals share one nature, and ultimately how a teeming cosmos might flow from one source. Plato turned the problem into a method of dialectic, Aristotle anatomized the many senses of "one," and Plotinus made all things descend from a single transcendent One. The question shaped debates about unity, identity, and being for two and a half millennia.

Where this idea shows up

14 Greek sources·3 Jewish-canon citations

Where to read it