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

数学中最重要的是理解概念，而不仅仅是记忆公式。

"The magic of cinema lies in its ability to transport the audience to another world."

The world is full of obvious things which nobody by any chance ever observes.

我认为，与战胜敌人的人相比，战胜欲望的人更加勇敢。

In science, we try to explain what we don't understand. In mathematics, we try to understand what we can't explain.