Cryptography is about communication in the presence of adversaries.

Mathematics is not a spectator sport—you have to engage with it to appreciate its beauty.

"The purpose of fiction is to combat loneliness."

一个人必须经过一番刻苦奋斗，才会有所成就。

过去是知识的巨大源泉，但也是幻觉的巨大源泉。