When you lead the meditation, I think kneeling is fine, but for me it's really painful, not everybody can do that.

当进行冥想时，我觉得跪地可以接受，但确实感到疼痛，不是人人都可以坚持。

普林斯顿公开课 - 人性课程节选

It seems to me rather a long distance from the thought, nobody can die for me,nobody can take my part, to the claim,everybody dies alone.

对我来说，没有人能够代替他人死亡，这说法离每个人都是孤独而死这说法，还有好一段距离。

耶鲁公开课 - 死亡课程节选