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

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

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

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

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

"Silence is a source of great strength."

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

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