自信不是"他们会喜欢我"，而是"如果他们不喜欢我，我也没关系"。

The world we see that seems so insane is the result of a belief system that is not working.

A good mathematician is not one who knows all the answers, but one who asks the right questions.

对人类来说，最可恨的痛苦是知道一切却无能为力。