"I always believe if you’re stuck in a hole and maybe things aren’t going well you will come out stronger."

"The truth is rarely pure and never simple."

数学的快乐来自创造的行为，而不仅仅是结果。

The best way to predict the future is to create it.

一个好句子应该包含某种张力。

Integrity is non-negotiable in business.