Remark

This consideration, which very well deserves to be worked out in detail in Transcendental Philosophy, can come in here only in passing, by way of elucidation (not as a proof of what is here proposed).

Reason is a faculty of principles and proceeds in its extremest advance to the unconditioned; on the other hand, the Understanding stands at its service always only under a certain condition which must be given. But without concepts of Understanding, to which objective reality must be given, the Reason cannot form any objective (synthetical) judgement; and contains in itself, as theoretical Reason, absolutely no constitutive but merely regulative principles. We soon see that where the Understanding cannot follow, the Reason is transcendent, and shows itself in Ideas formerly established