The arguments put forward in this paper attempt to show the relevance of a remark of Kant's on the propositional content of the principle of causality and the structure of the Analogies of Experience. This remark, though marking a decisive point in Kant's transcendental theory of experience, has not been dealt with adequately by Kantian scholars. Consequently, to some of them the very title of this paper may appear to contradict what they regard as basic Kantian doctrine. This paper attempts to prove that what may seem to contradict basic Kantian assertions is a basic, though problematic, Kantian assertion itself.