What do we need to presuppose in order for there to be such a thing as morality? His predecessors had disagreed on the limits and scope of metaphysics, to which Kant devotes his attention. Kant claims that the knowledge of reality is not accessible to us, but knowledge of the intellectual equipment from which we can view reality is. We can never take the spectacles off. He argues that pure Freedom and pure Morality go hand in hand, although he cannot maintain the existence of either without assuming the other possible. One is tempted to claim that what lies beyond the scope of our knowledge makes no sense to us as human beings and, therefore, is not worth our labor, but I think Kant understands the importance of faith (belief in a deity etc.) in the practical quest for morality. Who dares ponder the unthinkable? The knot in my back is preventing me from thinking objectively.