我们必须设计本质上是恢复性和再生性的系统。

解读：靠炫耀、攀比获得的虚荣感，依赖外界认可，根基不稳，一旦外界夸赞消失，内心只剩空虚失落，劝诫远离虚荣，追求真实价值。

"The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion."

The use of a program to prove the 4-color theorem will not change mathematics - it merely demonstrates that the theorem, a challenge for a century, is a finite problem.

“必要”不认识任何的“法律”。

最有效的政策往往是最简单的。