According to the dualist, the mind is this immaterial substance and we could call it by different names.

根据二元论,心灵是非物质的实体,我们可以用不同的名字称呼它

耶鲁公开课 - 死亡课程节选

If the very idea of soul that we're working with here under the dualist picture is the soul as an immaterial substance, it's not made of ordinary atomic matter.

如果关于我们正在讨论的,观点是建立在二元论的基础上,即灵魂是非物质实体,它并非由一般的原子物质组成

耶鲁公开课 - 死亡课程节选

The soul is an immaterial substance.

灵魂是非物质存在

耶鲁公开课 - 死亡课程节选