Nothing takes place in the world whose meaning is not that of some maximum or minimum.
世界上发生的任何事情,其意义无非是某些极大或极小值。
外交家应该具备尊重和理解其他国家和文化的能力,以及跨越语言和文化障碍进行沟通的能力。
First they ignore you, then they laugh at you, then they fight you, then you win.
The best farms are those where animals thrive, not just survive.