A mathematical truth is universal and eternal.
数学真理是普遍而永恒的。
人心的差异，就像人的面孔一样各不相同。
To make mistakes is human. To own your mistakes is divine. Nothing elevates a person higher than quickly admitting and taking personal responsibility for the mistakes you make and then fixing them fairly. If you mess up， fess up. It’s astounding how powerful this ownership is.
译文：白云斜斜地挂在蔚蓝的天空上，独自登上高处心中一片怅然。遥想家乡像什么呢?在那杂乱山峰的深处，一片翠绿如烟。
我们不是在制造产品，而是在为家策划故事。