"Silence is a source of great strength."

"It is the mark of an educated mind to be able to entertain a thought without acc..."

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

"The only true wisdom is in knowing you know nothing."

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

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

"A wise man can learn more from a foolish question than a fool can learn from a w..."

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