Socrates in Plato’s "Symposium"
Alcibiades says, “All this had already occurred when Athens invaded Potidaea, where we served together and shared the same mess. Now, first, he took the hardships of the campaign much better than I ever did––much better, in fact, than anyone in the whole army. When we were cut off from our supplies, as often happens in the field, no one else stood up to hunger as well as he did. And yet he was the one man who could really enjoy a feast; and though he didn’t much want to drink, when he had to, he could drink the best of us under the table. Still, and most amazingly, no one ever saw him drunk” (Symposium 219d-e).
[Aristomedes] saw that the others had either left or were asleep on their couches and that only Agathon, Aristophanes, and Socrates were still awake, drinking out of a large cup which they were passing around from left to right. Socrates was talking to them. Aristodemus couldn’t remember exactly what they were saying––he’d missed the first part of their discussion, and he was half-asleep anyway––but the main point was that Socrates was trying to prove to them that authors should be able to write both comedy and tragedy: the skillful tragic dramatist should also be a comic poet. He was about to clinch his argument, though, to tell the truth, sleepy as they were, they were hardly able to follow his reasoning. In fact, Aristophanes fell asleep in the middle of the discussion, and very soon thereafter, as day was breaking, Agathon also drifted off. But after getting them off to sleep, Socrates got up and left, and Aristodemus followed him, as always. He said that Socrates went directly to the Lyceum, washed up, spent the rest of the day just as he always did, and only then, as evening was falling, went home to rest. (Symposium 223c-d)