如果你想在数学上取得进步，你必须习惯于不舒服。

The sun himself is weak when he first rises, and gathers strength and courage as the day gets on.

实现明天的唯一限制是我们今天的疑虑。

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

狂人怼温格，但事后又道歉。

学习任何事情的最好方法就是去做。