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

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

"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..."

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

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

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