君子作战虽然布阵,但还是以勇敢为本。 
Every problem in mathematics is an opportunity to learn something new.
To be free is not merely to cast off one's chains, but to live in a way that respects and enhances the freedom of others.
创新不仅仅是技术的问题,更是关于改变我们的思维和运作方式。