Simmias of Thebes

Simmias of Thebes (Ancient Greek: Σιμμίας Θηβαῖος; fl. 5th–4th century BC) was an ancient Greek philosopher, disciple of Socrates, and a friend of Cebes. In his Memorabilia, Xenophon includes him in the inner circle of Socrates' followers.^[2] He appears in Plato's Phaedo as a main discussion partner of Socrates alongside Cebes, as well as Crito,^[3] Phaedrus,^[4] and Epistle XIII.^[5]

In addition to the references in Plato and Xenophon, Diogenes Laërtius mentions Simmias as the author of 23 brief dialogues, now lost, including On Philosophy and On Music.^[6] Simmias appears as a character in Plutarch's De Genio Socratis section of the Moralia.^[7] A pseudepigraphic letter from Xenophon to Simmias and Cebes is included in the Cynic epistles attributed to Socrates' followers.^[1] Two short works are also attributed to him in the Greek Anthology, a couplet on Sophocles and an epitaph on Plato.^[1]