Mathematics is a language that allows us to describe the indescribable.

The most important thing is that we develop an interest in the world and take joy in our fellow human beings.

生命短暂，但如果我们活得正确，一次就足够了。

The truth is that we are all alone in the world.

我不害怕跌倒，我害怕对跌倒的恐惧。