Quantum cryptography doesn't rely on the difficulty of mathematical problems, but on the fundamental laws of physics.
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 more you can increase fear of drugs and crime, welfare mothers, immigrants and aliens, the more you control all the people.