The challenge is to make the invisible visible.

Risk more than others think is safe. Dream more than others think is practical.

The problem is that at a lot of big companies, the process becomes a substitute for thinking. You're encouraged to behave like a little gear in a complex machine.

Mathematics knows no races or geographic boundaries; for mathematics, the cultural world is one country.

Success is doing what you want to do, when you want, where you want, with whom you want, as much as you want.

学习新编程语言的最好方法是用它编写程序。

P与NP问题是计算机科学中最重要的一个问题之一。