One analysis of multiple personality disorder is that you have many people inside a single body fighting it out for control.

对多重人格障碍的一种解释就是,在你的身体中存在着多个心灵,争夺对身体的控制权

耶鲁公开课 - 心理学导论课程节选

To what extent are all of us composed of multiple people, and to what extent are we a single unified person over time?

我们究竟在多大程度上,是由多种人格组成的,又在多大程度上是一直由单一人格组成的

耶鲁公开课 - 心理学导论课程节选