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".
Polybius Polybius ( ; Greek: Πολύβιος , "Polýbios"; c. 200  – c. 118  BC) was a Greek historian of the Hellenistic period noted for his work, "The Histories", which covered the period of 264–146 BC in detail. The work describes the rise of the Roman Republic to the status of dominance in the ancient Mediterranean world and included his eyewitness account of the Sack of Carthage in 146 BC. Polybius is important for his analysis of the mixed constitution or the separation of powers in government, which was influential on Montesquieu's "The Spirit of the Laws" and the framers of the United States Constitution.