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

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

"Silence is a source of great strength."

"The only true wisdom is in knowing you know nothing."

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

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

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

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