For our purposes, I think that won't be crucial, and so I'll sometimes talk about this set of abilities without actually having a canonical list.

但鉴于课程的目的,这点并不在我们的讨论重点之内,所以我也许偶尔会提及人的这些能力,但并不会把它们详尽地列举出来

耶鲁公开课 - 死亡课程节选