We started with the idea you needed to appeal to souls in order to roughly explain why human bodies move, why we're animated or why we move in nonrandom ways.

一开始,我们诉诸于灵魂这样一个概念,是为了解释,为何人类的肉体能移动,为何我们有生命力,为何我们能够非随机性的运动

耶鲁公开课 - 死亡课程节选