Simmias of Thebes appears as a main discussion partner in a dialogue from the man who founded what?
Simmias of Thebes Simmias of Thebes (Greek: Σιμμίας Θηβαῖος ; fl. 5th–4th century BCE) 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. He appears in Plato's "Phaedo" as a main discussion partner of Socrates alongside Cebes, as well as "Crito", "Phaedrus", and "Epistile" "XIII".
Heliodorus (philosopher) Heliodorus (Greek: Ἡλιόδωρος ) is cited as the author of a work titled "Commentary" (dated 564 AD), which has been preserved, on the "Introduction" or "Rudiments" of Paulus Alexandrinus, the 4th century Alexandrian astrologer. The name "Heliodorus" appears only on the later of two groups of manuscripts, and so is somewhat doubtful. Leendert Westerink has argued that the commentary consists of notes of lectures, most likely given by the 6th-century philosopher and astrologer, Olympiodorus, in 564 AD. The Greek text of his commentary on Aristotle's "Nicomachean Ethics" has been published in vol. 19.2 of "Commentaria in Aristotelem Graeca" (CAG).