But while psychology and ethics both study the powers and functions of the soul, they do so with different aims. The one has no aim beyond a knowledge of the phenomena and laws of the mind as mind. The other studies it with a view to the light which this knowledge sheds on the problems of virtue and duty. There are, indeed, some questions in ethics that transcend the province of psychology, and belong to the further realm of metaphysics--as, for instance, the validity and ground of the distinction between right and wrong--yet, so far as it is the science of conscience or of man's moral nature, it is thoroughly psychological. And well would it have been for moral science if, instead of speculatively and arbitrarily theorizing on the subject, it had more critically, fully, and exactly searched out the real facts in actual psychology and moved forward always toward the conclusions necessitated by these fundamental and abiding realities. ==Relation to Natural Theology.== (2) To Natural Theology. As Natural Theology seeks to determine the existence, character and will of God as Creator and Moral Governor of the world, and the consequent relations and responsibilities of men, it covers, to some extent, the same ground as a system of ethics constructed simply upon the basis of reason and the data found in man's nature and place. Both, if properly drawn out, bring to view the reality of "a power that makes for righteousness"[6] in the natural constitution of the world, and exhibit the laws of obligation that bind men under the action of conscience. Both treat of the fact and authentications of human duty. A science of ethics, as well as a theology, may be constructed, apart from supernatural revelation, from the data of reason and nature alone. The possibility of this is implied in Rom. 2:14, 15. This would be a system of natural ethics. There is still, however, a large difference--though theology and ethics be kept apart from the teachings of special revelation. For Natural Theology keeps more prominently and controllingly in view the being and character of God, and aims more distinctly to produce the religious sentiments, while authenticating the reality and action of the moral law. Ethics, on the other hand, puts the facts of human nature and life into the front and includes the religious element only as a consequential, though necessary, inclusion. ==Relation to Christian Theology.==