<metaphysics, history of philosophy> basic stuff of which a thing is made; one of Aristotle's four causes. Recommended Reading: Aristotle, The Physics: Books I-IV, tr. by Philip H. Wicksteed and Francis M. Cornford (Harvard, 1986) and Aristotle's Physics: A Collection of Essays, ed. by Lindsay Judson (Clarendon, 1995).
[A Dictionary of Philosophical Terms and Names]
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