正义的概念不是法律概念，而是道德概念。

The course of history is the slow march of freedom.

现代密码学的挑战不仅是确保通信安全，而且要以既高效又可扩展的方式实现。

I don’t need a plan, I just need a vision.

A man, as a general rule, owes very little to what he is born with – a man is what he makes of himself.

文学的美在于它让我们在一生中活出千种人生。