"To be clever enough to get all that money, one must be stupid enough to want it."

"We do not have to visit a madhouse to find disordered minds; our planet is the mental institution of the universe."

"The mind is not a vessel to be filled, but a fire to be kindled."

"Thinking is easy, acting is difficult, and to put one's thoughts into action is the most difficult thing in the world."

"Live in the sunshine, swim the sea, drink the wild air."