评判越多，爱得越少。

It seems to me that the natural world is the greatest source of excitement; the greatest source of visual beauty; the greatest source of intellectual interest. It is the greatest source of so much in life that makes life worth living.

In mathematics, you don't understand things. You just get used to them.

做伟大工作的唯一方法就是热爱你所做的事情。