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

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

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

"The measure of intelligence is the ability to change."

"He who has a why to live can bear almost any how."

"Silence is a source of great strength."

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

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