I will hazard a prediction. When you are 80 years old， and in a quiet moment of reflection narrating for only yourself the most personal version of your life story， the telling that will be most compact and meaningful will be the series of choices you have made. In the end， we are our choices. Build yourself a great story.

太阳总有办法照到我们，不管我们在哪里。

银河系中心是强引力下的一个独特的自然实验。

The arithmetic of L-functions is a key to unlocking the secrets of number theory.

动物和人类的区别在于人类能够推理,但即便如此也是不可靠的。