Or being a professor is a phase you can go through and then cease to be.

或者像作为教授是一段时间后会停止的。

耶鲁公开课 - 死亡课程节选

In the same way that being a child is a phase you can go through for a period of time and then cease to be.

就像是作为儿童存在一样也是一个阶段,会经历一段时间而后停止。

耶鲁公开课 - 死亡课程节选