Unless we are to acquiesce in the view that we can never be conscious of anything outside our own minds, we must say that the object of consciousness need not be mental, though the consciousness must be.

除非我们默认我们永远无法意识到我们自己头脑之外的任何事物的观点，否则我们必须说意识的对象不一定是精神的，尽管意识必须是。