 Dem.: The idea, or knowledge of the mind (by P20) follows in God in the same way, and is related to God in the same way as the idea, or knowledge, of the body. But since (by P19) the human Mind does not know the human Body itself, i.e. (by P11C), since the knowledge of the human Body is not related to God insofar as he constitutes the nature of the human Mind, the knowledge of the Mind is also not related to God insofar as he constitutes the essence of the human Mind. And so (again by P11C) to that extent the human Mind does not know itself.