The essence of cryptography is to allow communication in the presence of adversaries.

城市不仅仅是一个地方，它是一个有自己记忆的生命体。

News is what somebody somewhere wants to suppress; all the rest is advertising.

宇宙是一个巨大的、相互连接的信息网络，而量子力学是解锁其秘密的关键。