<ancient philosophy, ontology, material principle>, <Anaximander, infinite, boundless, Plato, neoplatonic> <philosophy, metaphysics> Anaximander's Greek word for the boundless extent of the universe as undifferentiated matter. Although Plato made only scant reference to this notion of what is unlimited, the neoplatonic philosophy of Plotinus elevated it as the material principle of all change. Recommended Reading: Paul Seligman, The Apeiron of Anaximander; A Study in the Origin and Function of Metaphysical Ideas (Greenwood, 1974); F.E. Peters, Greek Philosophical Terms: A Historical Lexicon (NYU, 1967).
[A Dictionary of Philosophical Terms and Names]
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