Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.
数学不是关于数字、方程、计算或算法：它是关于理解的。
The greatest thing about tomorrow is, I will be better than I am today.
Every performance, I treat it as the last one.
未来属于那些今天为之准备的人。
灵魂是心理过程的总和，从其因果相互联系的角度来看。