Some people have an ability to negotiate. It's an art you're basically born with. You either have it or you don't.

Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.

A thing is not necessarily either true or false; it can be both true and false.

The whites came to this land for a fresh start and to escape the tyranny of their masters, just as the freemen had fled theirs. But the ideals they held up for themselves, they denied others.

学习算法的设计应同时受到理论见解和实践考虑的指导。