Happiness ain't a thing in itself --- it's only a contrast with something that ain't pleasant. That's all it is.

To do mathematics is to engage in an act of creation and discovery simultaneously.

我们需要对外界的学习充满永不满足的渴望，并将这些学习成果带入微软。

学得越多，知道得越多；知道得越多，忘记得越多；忘记得越多，知道得越少。那么，为什么要学习呢？

逻辑的法则就是真理的法则。

如果你没有做错什么，你就没有什么可隐藏的。

Sustainability is not just about the environment, it's about people.

The world is a stage, but the audience is dead.