Antiphon
6. A Greek sophist, who lived before the time of Aristotle, and whose opinions respecting the quadrature of the circle, and the genesis of things, are mentioned by this philosopher. (Aristot. Sophist. Elench. 1.10, Phys. 1.2, 2.1.)
From William Smith (ed.), Dictionary of Greek and Roman Biography and Mythology. Text provided under a CC BY-SA license by Perseus Digital Library, http://www.perseus.tufts.edu, with funding from the National Endowment for the Humanities and Tufts University. Data accessed from https://github.com/PerseusDL/canonical-pdlrefwk/ on 17 October 2026.