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

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

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

"Knowing yourself is the beginning of all wisdom."

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

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

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

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