oracles that infallibly declare not, alas!

what will, but what ought to, happen. This doctrine of Practical Reason, as a direct and immediate fact, once it had been adopted, or rather introduced by artifice combined with defiance, was unhappily later on extended also to Theoretical Reason; and not unnaturally: for Kant himself had often said that both are but one and the same Reason (e.g., Preface, p. xii; R., p. 8). After it had been once admitted that in the domain of the Practical there is a Reason which dictates ex tripode, it was an easy step to concede the same privilege to Theoretical Reason also, closely related as the latter is to the former — indeed, consubstantial with it. The one was thus pronounced to be just as immediate as the other, the advantage of this being no less immense than obvious.