只有一种真正的罪过，那就是说服自己二流的东西不仅仅是二流。
There is only one real sin, and that is to persuade oneself that the second-best is anything but the second-best.
复杂性和矛盾不是要解决的问题，而是有待探索的机会。
The essence of mathematics lies in its freedom.
Always listen to experts. They’ll tell you what can’t be done and why. Then do it.
Serving your country is an honor, not a right.