没有一个社会能够真正繁荣和幸福，其中大多数成员都贫困和痛苦。

"The unsaid is often more powerful than the spoken word."

NP中的每个问题都可以归约为可满足性问题，这是计算复杂性理论的基石。

The individual has always had to struggle to keep from being overwhelmed by the tribe.