chapter  10
Kant I: The Critique of Pure Reason
Pages 12

We have traced two contrasting philosophical currents, rationalism and empiricism, from their common inception in the ‘cogito’ of Descartes, to their final divergence in Leibniz and Hume. In the eighteenth century, the century of Enlightenment, it was between those two philosophies that a thinking person had to choose. It was Kant’s principal contribution to show that the choice between empiricism and rationalism is unreal, that each philosophy is equally mistaken, and that the only conceivable metaphysics that could commend itself to a reasonable being must be both empiricist and rationalist at once.