"Every book is a door to another world, waiting to be opened by the curious mind."

我是一个人，我会坠入爱河，有时我无法掌控所有情况。

I’m not afraid to take risks, because I know that’s how you grow.

At the close of our studies， we knew all the past of physics， but nothing of the present and the future.

学习数学的唯一方法就是做数学。