抽象的目的不是模糊，而是创建一个新的语义层次，在这个层次上可以绝对精确。
The purpose of abstraction is not to be vague, but to create a new semantic level in which one can be absolutely precise.
客户满意度毫无价值，客户忠诚度才是无价的。
我不是说唱歌手，我是一个活着的传奇。
I've learned that you can't control everything in life, and that's okay.
It’s not how you fall, it’s how you get back up.
Truth is eternal, knowledge is changeable.
真正爱国者的职责是保护他的国家免受其政府的侵害。
The statesman， who should attempt to direct private people in what manner they ought to employ their capitals， would not only load himself with a most unnecessary attention but assume an authority which could safely be trusted， not only to no single person， but to no council or senate whatever， and which would nowhere be so dangerous as in the hands of a man who had folly and presumption enough to fancy himself fit to exercise it.
书写历史就是与幽灵搏斗。