"All I know is that I know nothing"
I realize this is intended as a joke, but for something to be funny, it must have a heavy dose of truth. This is not even close to anything Socrates ever said or felt.
His lone statement in the Symposium "all I know is that I know nothing" was meant ironically, and that irony, while not lost on anyone in the room who heard him say it, all of whom knew him to be the wisest among them, it's irony has been lost on virtually every person since who wishes to devalue and discard all else he said.
A person could hardly do better on the road to true wisdom than by starting with a healthy humility, a robust heart, and the Socratic dialogues.
Actually, start with Plato's Republic and Bloom's magisterial interpretive essay on it.
A thousand years from now, the would-be wise will still be reading them together.