What classical Greek philosopher credited as one of the founders of Western philosophy, was featured in the Socratic dialogue, The Symposium? 
Symposium (Xenophon):  In it, Socrates and a few of his companions attend a symposium (a lighthearted dinner party at which Greek aristocrats could have discussions and enjoy entertainment) hosted by Kallias for the young man Autolykos. Socrates: Socrates ( ; Greek: Σωκράτης , "Sōkrátēs"; 470/469 – 399 BC) was a classical Greek (Athenian) philosopher credited as one of the founders of Western philosophy.
i don't know