人们永远不会注意到已经做了什么；人们只能看到还有待完成的事情。

I never really thought about being a director. I just wanted to be an actor. But as I got older, I realized that I wanted to have more control over the films I was in.

科学最令人兴奋的方面是发现一些新的东西，一些以前没有人见过的东西。

Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.

No man, for any considerable period, can wear one face to himself and another to the multitude, without finally getting bewildered as to which may be the true.