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

"The mind is everything. What you think you become."

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

"Patience is the companion of wisdom."

"To know what you know and what you do not know, that is true knowledge."

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

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

"Judge a man by his questions rather than his answers."