When you solve a mathematical problem, you don't just get the answer - you understand why it's the answer.

I have always believed that the way you treat others is a reflection of how you feel about yourself.

沙漠之所以美丽，是因为在它的某个角落隐藏着一口井水……

我不是一个放弃信仰的人。

The beauty of physics lies in its ability to explain the complex with the simple.

The past is never dead. It's not even past.