没有人能在相当长的时间里，对自己戴一副面具，对众人戴另一副面具，而最终不困惑于哪一副才是真实的。

I think the best actors are the ones who are willing to take risks.

Les passions sont comme les maladies: plus on les combat, plus elles se renforcent.

The people who are crazy enough to think they can change the world are the ones who do.

The essence of mathematics lies in its freedom.

我们需要的书是那些能读懂我们的书。