To write is to fight against oblivion.
Cryptography is about communication in the presence of adversaries.
文学有超越时间和空间的力量，将我们与不同时代和文化的人的思想和情感连接起来。
The study of computation is not just about machines, but about the very nature of thought and logic.
The world owes all its onward impulses to men ill at ease; the happy man inevitably confines himself within ancient limits.