"A literatura é a expressão máxima da liberdade humana."

The said truth is that it is the greatest happiness of the greatest number that is the measure of right and wrong.

量子通信的安全性来自物理定律，而不是计算复杂性。

工作的乐趣在于一个词——卓越。知道如何做好一件事就是享受它。