如果你没有前进，那你就是在落后。
If you’re not moving forward, you’re falling behind.
不学《诗经》，就无法表达自己的意思；不学习《礼记》，就无法在社会中立足。
Happiness is secured through virtue; it is a good attained by man's own will.
The mind is a system for making life possible.
Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.