"The challenge in theoretical computer science is not just to solve problems, but to understand why they are hard to solve."

唯一比摇滚明星更糟糕的是有良知的摇滚明星。

领导力就是让他人因为你的存在而变得更好，并确保这种影响在你离开后依然持续。

And when his audience grew bored, he would spring into the air and do a back flip with a half twist.

It is not from the benevolence of the butcher， the brewer， or the baker that we expect our dinner， but from their regard to their own interest.