国家本质上是侵略性和扩张主义的,因为它们存在于一个无政府状态的国际体系中,没有更高的权威来约束它们。
True progress is measured not just in profits, but in the positive impact we have on society.
最好的农场是动物茁壮成长的地方,而不仅仅是生存。
十分的聪明只用七分就可以了,剩下三分留给子孙;如果要将十分聪明全都使出来,反而会适得其反,近的害了自己,远的害了儿孙。
Every problem in mathematics has a solution; it's just a matter of finding the right path.