The beauty of mathematics is that it is one of the few areas of human endeavor where absolute truth can be known.

To be human is to be in conflict with oneself.

控制的艺术在于处理未知和不可预测的事物。

I don't think you should ever have to apologize for your excitement. Just because something's cliché doesn't mean it's not awesome.

富足不是我们获得的东西。它是我们调谐到的东西。