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

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

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

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

"Knowing yourself is the beginning of all wisdom."

"Patience is the companion of wisdom."

"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."