"Knowing yourself is the beginning of all wisdom."

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

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

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

"By three methods we may learn wisdom: first, by reflection, which is noblest; se..."

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

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

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