Moral theology is therefore only of immanent use, namely for ful filling our vocation here in the world by fitting into the system of all ends, not for fanatically or even impiously abandoning the guidance of a morally legislative reason in the good course of life in order to con nect it immediately to the idea of the highest being, which would pro vide a transcendental use but which even so, like the use of mere speculation, must pervert and frustrate the ultimate ends of reason.