Quantum cryptography doesn't rely on the difficulty of mathematical problems, but on the fundamental laws of physics.

The only thing standing between you and your goal is the story you keep telling yourself as to why you can’t achieve it.

The study of nature is a perpetual joy.

最终，我们将记住的不是敌人的话语，而是朋友的沉默。

"The challenge of acting is to make the audience forget they are watching a performance."