The only way to learn mathematics is to do mathematics.
学习数学的唯一方法就是做数学。
The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.
数学的统一性不是强加的，而是被发现的。
没有人民的普遍知识，自由就无法得到保障。
经济发展需要稳定的法治环境。
The history of life is written in A, T, C, and G.
I write to understand, to grasp the reality that escapes me.