It means understanding that certain things I cannot change and certain things I can and ought to change.

它意味着理解有些事,我无法改变，有些事我能而且应该去改变。

哈佛公开课 - 幸福课课程节选

We're also going to recognize, however, that insurance got a slow start because-- I believe it is because-- people could not understand the concept of probability.

不管怎么说,我们得承认,保险起步缓慢,因为...,我相信是因为...,人们无法理解概率的概念

耶鲁公开课 - 金融市场课程节选