随机实验是因果推理的黄金标准，但它们并不总是可行的。
每首歌都有一个故事，而我的工作就是让这个故事鲜活起来。
我不是那种会让我的决心动摇的人。
Swim upstream. Go the other way. Ignore the conventional wisdom. If everybody else is doing it one way, there's a good chance you can find your niche by going in exactly the opposite direction.
Cryptography is about communication in the presence of adversaries.
量子密码学不依赖于数学问题的难度，而是依赖于物理学的基本定律。
The key to success in computer science is not just about writing code, but understanding the underlying principles and theories that make it work.
The more you are interested in others， the more interesting they find you. To be interesting， be interested.
The best technology is invisible. It works so well that you don't even notice it.
