 Although we learn many laws through experience, these are still only particular determinations of yet higher laws, among which the highest (under which all others stand) originate a priori in the understanding itself, and are not borrowed from experience, but must rather provide appearances with their law-governedness, and precisely thereby make experience possible … To be sure, empirical laws as such can in no way derive their origin from pure understanding—no more than the immeasurable manifold of appearances can be sufficiently comprehended from the pure form of sensibility. But all empirical laws are only particular determinations of the pure laws of the understanding, under which and in accordance with the norm of which they first become possible, and the appearances take on a lawful form—just as all appearances, notwithstanding the diversity of their empirical form, still must also always be in accordance with the condition of the pure form of sensibility [i.e., space and time].