The only escape from necessity, therefore, is in the conception of a will as above defined--a conscious, self-moving power, which may obey reason in opposition to passion, or passion in opposition to reason, or obey both in their harmonious union; and lastly, which may act in the indifference of all, that is, act without reference either to reason or passion. Now when the will obeys the laws of the reason, shall it be asked, what is the cause of the act of obedience? The will is the cause of its own act; a cause _per se_, a cause self-conscious and self-moving; it obeys the reason by its own _nisus_. When the will obeys the strongest desire, shall we ask, what is the cause of the act of obedience? Here again, the will is the cause of its own act. Are we called upon to ascend higher? We shall at last come to such a self-moving and contingent power, or we must resign all to an absolute necessity. Suppose, that when the will obeys the reason, we attempt to explain it by saying, that obedience to the reason awakens the strongest desire, or the sense of the most agreeable; we may then ask, why the will obeys the strongest desire? and then we may attempt to explain this again by saying, that to obey the strongest desire seems most reasonable. We may evidently, with as much propriety, account for obedience to passion, by referring to reason; as account for obedience to reason, by referring to passion. If the act of the will which goes in the direction of the reason, finds its cause in the sensitivity; then the act of the will which goes in the direction of the sensitivity, may find its cause in the reason. But this is only moving in a circle, and is no advance whatever. Why does the will obey the reason? because it is most agreeable: but why does the will obey because it is most agreeable? because to obey the most agreeable seems most reasonable. Acts of the will may be conceived of as analogous to intuitive or first truths. First truths require no demonstration; they admit of none; they form the basis of all demonstration. Acts of the will are first movements of primary causes, and as such neither require nor admit of antecedent causes, to explain their action. Will is the source and basis of all other cause. It explains all other cause, but in itself admits of no explanation. It presents the primary and all-comprehending _fact_ of power. In God, will is infinite, primary cause, and untreated: in man, it is finite, primary cause, constituted by God's creative act, but not necessitated, for if necessitated it would not be will, it would not be power after the likeness of the divine power; it would be mere physical or secondary cause, and comprehended in the chain of natural antecedents and sequents.