"Science is organized knowledge. Wisdom is organized life."

"By three methods we may learn wisdom: first, by reflection, which is noblest; se..."

"The fool doth think he is wise, but the wise man knows himself to be a fool."

"The only thing I know is that I know nothing."

"Silence is a source of great strength."

"The only thing we have to fear is fear itself."

"We don't see things as they are, we see them as we are."

"It is not that I'm so smart. But I stay with the questions much longer."