一个力学问题只有被简化为代数问题时才算解决。
A good mathematician is always ready to generalize.
The only thing that is truly yours is your time.
Success is a function of persistence and doggedness and the willingness to work hard for twenty-two minutes to make sense of something that most people would give up on after thirty seconds.
成功不是要成为最好的，而是要变得比昨天更好。