过去是一个谜，我们都在试图拼凑它。

在生活的混乱中，文学提供了一刻的清晰。

Always be learning. The world changes fast, and you need to keep up.

一个社会文化系统的行为基础设施是其上层建筑的主要原因。

"The key to successful verification is to start with a clear and precise specification of what the system is supposed to do."

That’s one small step for a man, a giant leap for mankind.