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School · 490 BCE–100 BCE

Ancient atomism

Ancient atomists explained the world through indivisible bodies moving in void, pairing a physical account of compound things with arguments about perception, knowledge, and ethical composure.

Shared questions

  • Can bodies and void explain generation, change, perception, and the apparent qualities of things?

Internal disagreements

  • Whether atomist explanation leaves room for necessity alone, purposive order, or a reliable route from appearance to knowledge.

Key texts

  • Fragments of Leucippus and Democritus — Nothing survives whole; the position is reconstructed from quotations and hostile summaries in later authors.