Caius
2. A Platonic philosopher who is mentioned as an author by Porphyry (Vit. Plot. 14), but of his writings nothing is known. Galen (vol. vi. p. 532, ed. Paris) states, that he heard the disciples of Caius, from which we must infer that Caius lived some time before Galen.
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.