The worth of a mental process is in its service to life.

If you only do things where you know the answer in advance, your company goes away.

If you don’t have time, you don’t have priorities.

科学是一种试图不欺骗自己的方式。首要原则是你不能欺骗自己，而你自己是最容易被欺骗的人。

The past is a shadow that follows us, a ghost that haunts us.

In mathematics, the art of proposing a question must be held of higher value than solving it.

我希望不久之后我们就能有一台能够解决所有数学问题的机器。