你无法总是控制外面发生的事情。但你总能控制内心发生的事情。
You cannot always control what goes on outside. But you can always control what goes on inside.
在变革时期，学习者将继承地球，而知识渊博的人会发现自己装备精良却面对一个不复存在的世界。
"We are all descendants of successful maters, not unsuccessful ones, and this has shaped our mating psychology in profound ways."
I don't wait for moods. You accomplish nothing if you do that. Your mind must know it has got to get down to work.
抽象的力量在于它允许我们忽略不相关的细节，专注于问题的本质方面。
The first lesson of economics is scarcity: There is never enough of anything to satisfy all those who want it. The first lesson of politics is to disregard the first lesson of economics.
