"I am not an Athenian or a Greek, but a citizen of the world."

"Avoid it resolutely; it is not easy to control yourself once you meddle with that sort of thing."

"I would rather die having spoken after my manner, than speak in your manner and live."

"I am a fool, but I know I'm a fool and that makes me smarter than you."

"Our discussions are not about just any topic, but about the way we ought to live."