如果你总是做你一直在做的事情，你就会得到你一直得到的东西。
If you do what you've always done, you'll get what you've always gotten.
To write is to explore the unknown territories of the self.
A mathematician is a person who can find analogies between theorems; a better mathematician is one who can see analogies between theories and the best mathematician can notice analogies between analogies.
A quarry should heal the earth even as it harvests from it.
We perceive the world in terms of its utility for our survival.
The world is full of obvious things which nobody by any chance ever observes.
代数几何是研究多项式零点的学科。