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

"As for me, all I know is that I know nothing."

"The only good is knowledge, and the only evil is ignorance."

"This man among you, mortals, is wisest who, like Socrates, understands that his wisdom is worthless."

"A man who really fights for justice must lead a private, not a public, life if he is to survive for even a short time."