数学的乐趣在于旅程，而不仅仅是目的地。

The future is just a fucking concept we use to avoid the present.

"In the depth of winter, I finally learned that within me there lay an invincible summer."

做数学的艺术在于找到包含所有普遍性萌芽的特殊情况。

The best thing about getting older is that you don't lose all the other ages you've been.

Don’t say anything about someone in email you would not be comfortable saying to them directly， because eventually they will read it.

学习的最好方式是教学。