I'm not quite sure,because we have to turn to a metaphysical question that we've touched upon before,namely,can souls split?

我不太确定，因为要先提出一个以前说过的,形而上学的问题，就是，灵魂可以分裂么？

耶鲁公开课 - 死亡课程节选

And I'm not quite sure how to draw that line.

而我并不确定界限在哪里。

耶鲁公开课 - 死亡课程节选