"I tell you that virtue is not given by money, but that from virtue come money and every other good of man, public as well as private."

"One thing only I know, and that is that I know nothing."

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

"I only wish that ordinary people had an unlimited capacity for doing harm; then they might have an unlimited power for doing good."

"Which of these two is better only God knows."