All that Ethics or Music can do for such a Philistine is to "send him away to another city, pouring ointment on his head, and crowning him with wool," as Plato would dismiss the tragedian (_Republic_ III. 398). The author of the _Magna Moralia_ well says (I. i. 13): "No science or faculty ever argues the goodness of the end which it proposes to itself: it belongs to some other faculty to consider that. Neither the physician says that health is a good thing, nor the builder that a house is a good thing: but the one announces that he produces health and how he produces it, and the builder in like manner a house." The professor of Ethics indeed, from the very nature of his subject-matter, says in pointing out happiness that it is the rational sovereign good of man: but to any one unmoved by that demonstration Ethics can have no more to say. Ethics will not threaten, nor talk of duty, law, or punishment. Ethics, thus strictly considered on an Aristotelian basis, are antecedent to Natural Theology. They belong rather to Natural Anthropology: they are a study of human nature. But as human nature points to God, so Ethics are not wholly irrespective of God, considering Him as the object of human happiness and worship,--the Supreme Being without whom all the aspirations of humanity are at fault (pp. 13-26, 191-197). Ethics do not refer to the commandments of God, for this simple reason, that they have nothing to say to commandments, or laws, or obligation, or authority. They are simply a system of moral hygiene, which a man may adopt or not: only, like any other physician, the professor of Ethics utters a friendly warning that misery must ensue upon the neglect of what makes for health. Deontology, not Ethics, expounds and vindicates the idea, _I ought_. It is the science of Duty. It carries the mild suasions of Ethics into laws, and out of moral prudence it creates conscience. And whereas Ethics do not deal with sin, except under the aspect of what is called "philosophical sin" (p. 119, § 6), Deontology defines sin in its proper theological sense, as "an offence against God, or any thought, word, or deed against the law of God." Deontology therefore presupposes and is consequent upon Natural Theology. At the same time, while Ethics indicate a valuable proof of the existence of God as the requisite Object of Happiness, Deontology affords a proof of Him as the requisite Lawgiver. Without God, man's rational desire is frustrate, and man's conscience a misrepresentation of fact. [Footnote 1]