密码学是将信息转换成一种形式，使任何没有解锁密钥的人都无法理解的艺术。
Cryptography is the art of transforming information into a form that is unintelligible to anyone who does not possess the key to unlock it.
The mind is a mosaic of elementary processes.
Because we are food for worms, lads. Because, believe it or not, each and every one of us in this room...is one day going to stop breathing, turn cold and die.
爱就是失去，但我们仍然去爱。