This main principle established, Edwards has of course no difficulty in showing that the supposed injury to morality rests on a misconception of the real doctrine. If volitions, instead of being caused, are the products of arbitrary chance, morality becomes meaningless. We approve or disapprove of an action precisely because it implies the existence of motives, good or bad. Punishment and reward would be useless if actions were after all a matter of chance; and if merit implied the existence of free-will, the formation of virtuous habits would detract from a man's merit in so far as they tend to make virtue necessary. So far, in short, as you admit the existence of an element of pure chance, you restrict the sphere of law; and therefore morality, so far from excluding, necessarily involves an invariable connection between motives and actions. Arguments of this kind, sufficiently familiar to all students of the subject, are combined with others of a more doubtful character. Edwards has no hesitation about dealing with the absolute and the infinite. He dwells, for example, with great ingenuity upon the difficulty of reconciling the Divine prescience with the contingency of human actions, and has no scruple in inferring the possibility of reconciling virtue with necessity from the fact that God is at once the type of all perfection, and is under a necessity to be perfect. If such arguments would be rejected as transcending the limits of human intelligence by many who agree with his conclusions, others, equally characteristic, are as much below the dignity of a metaphysician. Edwards draws his proofs with the same equanimity from the most abstruse speculations as from a child-like belief in the literal inspiration of the Scriptures. He 'proves,' for example, God's foreknowledge of human actions from such facts as Micaiah's prophecy of Ahab's sin, and Daniel's acquaintance with the 'horrid wickedness' about to be committed by Antiochus Epiphanes. It is a pleasant supposition that a man who did not believe that God could foretell events, would be awed by the authority of a text; but Edwards' polemic is almost exclusively directed against the hated Arminians, and he appears to be unconscious of the existence of a genuine sceptic. He observes that he has never read Hobbes (v. 260); and though in another work he makes a brief allusion to Hume, he never refers to him in these speculations, whilst covering the same ground as one of the admirable _Essays_.