It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge.

你的时间有限，不要浪费在过别人的生活上。

The only way to grow is to step out of your comfort zone.

"Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding."

一本书是一个相遇的地方，一个共享的想象空间。

在数学中，你不是理解事物，你只是习惯了它们。