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

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

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

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

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

"In a gentle way, you can shake the world."

"Silence is a source of great strength."

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