——2008年2月19日在斯坦福大学演讲

"In every story, there is a piece of truth waiting to be discovered."

If you want to go fast, go alone. If you want to go far, go together.

The deepest theorems often arise from the simplest observations.

To do things with words is not a special kind of doing， but a special kind of speaking.

The only fence against the world is a thorough knowledge of it.