The most important property of a program is whether it accomplishes the intention of its user.

You can only find out what you actually believe (rather than what you think you believe) by watching how you act. You simply don’t know what you believe, before that. You are too complex to understand yourself.

永远原谅你的敌人，没有什么比这更让他们恼火的了。

 决定劳工工资的不是雇主的仁慈，而是雇主之间的竞争。