Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.

追求数学知识是一场永无止境的冒险，充满了挑战、惊喜和解决不可解问题的满足感。

You could rattle the stars. You could do anything, if only you dared. And deep down, you know it, too. That’s what scares you most.

Quality is never an accident; it is always the result of intelligent effort.

人类是一个太阳，感官是他的行星。