I think of a hero as someone who understands the degree of responsibility that comes with his freedom.

The challenge of modern physics is not just to understand the universe, but to understand our place within it.

I don't think that you have any insight whatsoever into your capacity for good until you have some well-developed insight into your capacity for evil.

The only way to do great work is to love what you do.

世界上充满了故事，但所有的故事都是一体的。