And there is a self-enforcing loop between the two, where helping others helps ourselves; and helping ourselves, in turn, helps others.

两者间有自我实施的循环，帮助他人就是帮助自己;,帮助自己继而帮助他人。

哈佛公开课 - 幸福课课程节选

One way to think about Nash equilibria is that they are self-enforcing agreements, so provided that everyone believes that everyone is going to go along with this agreement, then everyone in fact will.

我们可以这样理解纳什均衡,把它们想象成自我实施的协议,假设每个人都相信,大家都会遵守协议,那么大家就都会遵守

耶鲁公开课 - 博弈论课程节选