一个力学问题只有被简化为代数问题时才算解决。

做伟大工作的唯一途径就是热爱你所做的事。

If you want to be the best, you have to do things that other people aren't willing to do.

Farmers are the original environmentalists; we must support their work.

数学的本质在于它的自由。

Start with what is right rather than what is acceptable.