密码学是关于在存在对手的情况下进行通信的。

In times of crisis, true leaders emerge by staying calm, focused and decisive.

War is an ugly thing， but not the ugliest of things； the decayed and degraded state of moral and patriotic feeling which thinks that nothing is worth war is much worse.

When he looked into her dark eyes, and saw that her lips were poised between a laugh and silence, he learned the most important part of the language that all the world spoke—the language that everyone on earth was capable of understanding in their heart. It was love.

音乐是人类通用的语言。

要获得真正的成功，你需要先了解哪些事情会导致失败，然后避免它们。