Praxiphanes (Greek: Πραξιφάνης) a Peripatetic philosopher, was a native of Mytilene, who lived a long time in Rhodes.[1] He lived in the time of Demetrius Poliorcetes and Ptolemy I Soter, and was a pupil of Theophrastus, about 322 BC.[2] He subsequently opened a school himself, in which Epicurus is said to have been one of his pupils.[3] Praxiphanes paid special attention to grammatical studies, and is hence named along with Aristotle as the founder and creator of the science of grammar.[4]


Of the writings of Praxiphanes, which appear to have been numerous, two are especially mentioned, a Dialogue ποιητῶν (Poiitón, 'Poetry')[5] in which Plato and Isocrates were the speakers, and an historical work cited by Marcellinus in his Life of Thucydides[6] under the title of Περὶ ἱστορίας (Perí istorías, 'About History').


  1. ^ Algra, K., The Cambridge History of Hellenistic Philosophy. Page 36. Cambridge University Press. (1999). Cf. Clement of Alexandria, i.; Strabo, xiv.
  2. ^ Proclus, i. in Timaeum; John Tzetzes, ad Hesiod. Op. et Dies, 1.
  3. ^ Diogenes Laërtius, x. 13
  4. ^ Clement of Alexandria, i.
  5. ^ Diogenes Laërtius, iii. 8
  6. ^ Marcellinus, Thucydides, §29