"A mathematician is a device for turning coffee into theorems."

The study of mathematics is like air or gravity—it is everywhere, and you can't see it, but you know it's there.

Geometry is not just about shapes; it is about understanding the space we live in and the relationships within it.

Every tree planted today is a legacy for tomorrow.

我还不够年轻，无法知道一切。

I don't really care what people say about me. I know who I am.