鱼儿在江湖中彼此相忘，人在道术中彼此相忘。
A mathematician is a device for turning coffee into theorems.
We don't inherit the land from our ancestors; we borrow it from our children.
The more you know, the more you suffer.
The act of writing is an act of optimism. You would not take the trouble to do it if you felt it didn't matter.
We are all obsessed with the idea of the frontier, but it's a frontier that keeps receding.
