Note 1304 — Chapter III · ON THE GROUND OF THE DISTINCTION OF ALL OBJECTS WHATEVER INTO PHENOMENA AND NOUMENA

Kant’s meaning here is not quite clear. He may mean either that the categories as such are inapplicable to things in themselves, or that, as this form of intuition is altogether different from our own, it will not help in giving meaning to the categories. What follows would seem to point to the former view.