This is not all. Edwards undertakes to point out the difference between natural and moral necessity. In the case of moral necessity, says he, "the cause with which the effect is connected is of a particular kind: viz., that which is of a moral nature; either some previous habitual disposition, or some motive presented to the understanding. And the effect is also of a particular kind, being likewise of a moral nature; consisting in some inclination or volition of the soul, or voluntary action." But the difference, says he, "does not lie so much _in the nature of the connection_, as in the two terms connected." Now, let us suppose that any effect, the creation of the world, for example, is produced by the power of God. In this case, the connection between the effect produced, the creation of the world, and the act of the divine omnipotence by which it is created, is certainly the connection between an effect and its efficient cause. The two terms are here connected by a natural necessity. But we are most explicitly informed, that the connection between motives and volitions, differs from this in the nature of the two terms connected, rather than in the nature of the connection. How could language more clearly or precisely convey the meaning of an author? To say that President Edwards does not make motive the efficient cause of volition, is, indeed, not so much to interpret, as it is to new model, his philosophy of the will. The connection between the strongest motive, he declares, and the corresponding volition, is "absolute," just as absolute as any connection in the world. If the strongest motive exists, the volition is sure to follow; it necessarily follows; it is _absurd_ to suppose, that it may attend its cause or not. To say that it may follow the influence of its cause, or may not, is to say that it is not dependent on that influence, that it is not the effect of it. In other words, it is to say that a volition is the effect of the strongest motive, and yet that it is not the effect of it; which is a plain contradiction. Such, as we have seen, is the clear and unequivocal teaching of the Inquiry.