I un derstand merely the logical functions of subject and predicate, ground and consequence, in accordance with which actions or effects are determined in conformity to those laws in such a way that they can a the same time always be explained conformably to the laws of nature and the categories of substance and cause, although they arise from a wholly different principle.a This should have been said only to guard against a misunderstanding that easily arises regarding this doctrine about our self intuition as appearance.