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

"It is not that I'm so smart. But I stay with the questions much longer."

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

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

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

"Science is organized knowledge. Wisdom is organized life."

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

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