我会用city而永不用Metropolis来表达城市，用cop而永不用policeman来表达警察，既然三丶四个字母可以赚七个美分，为什么要用长而赘的字呢？
The concept of polynomial-time reduction is central to understanding the structure of NP-complete problems.
I believe in the power of storytelling to change the world.
That’s one small step for a man, a giant leap for mankind.
Life can be pulled by goals just as surely as it can be pushed by drives.
译文：不能逃避的事一定要去面对，该放手的事一定要懂得放手。赏析：遇到困难，我们要敢于面对，逃避现实并非解决问题的方式。人的精力有限，不必事事躬亲。我们要信任对方，放手让对方去做，即使对方做错了，也没事，因为人都是在错误中成长起来的。