We posit--or the fans of souls posit-- the existence of souls so as to explain something that needs explaining about us.

我们 或者灵魂论的拥护者们假设,灵魂是存在的,这就能解释一些我们自身不解的东西

耶鲁公开课 - 死亡课程节选

Sometimes, we posit the existence of something that we can't see so as to explain something else that we all agree takes place.

有时,我们通过假设,存在某些,我们看不到的事物以解释另一些,我们一致认同存在着的事物

耶鲁公开课 - 死亡课程节选