6. A great point with modern thinkers is the inviolability of the laws of physical nature, _e.g_., of gravitation or of electrical induction. If these laws are represented, as J. S. Mill said they should be, as _tendencies_ only, they are truly inviolable. The law of gravitation is equally fulfilled in a falling body, in a body suspended by a string, and in a body borne up by the ministry of an angel. There is no law of nature to the effect that a supernatural force shall never intervene. Even if, as may be done perhaps in the greatest miracles, God suspends His concurrence, so that the creature acts not at all, even that would be no violation of the physical law of the creature's action: for all that such a law provides is, that the creature, if it acts at all, shall act in a certain way, not that God shall always give the concurrence which is the necessary condition of its acting at all. The laws of physical nature then are, strictly speaking, never violated, although the _course_ of nature is occasionally altered by supernatural interference, and continually by free human volition. But the laws of physical nature, in the highest generality, are identified with the moral law. The one Eternal Law embraces all the laws of creation. It has a physical and a moral side. On the former it _effects_, on the latter it _obliges_, but on both sides it is imperative; and though in moral matters it be temporarily defeated by sin, still the moral behest must in the end be fulfilled as surely as the physical behest. The defeat of the law must be made good, the sin must be punished. Of the Eternal Law working itself out in the form of punishment, we shall speak presently. 7. It is important to hold this conception of the Eternal Law as embracing physical nature along with rational agents. To confine the law, as modern writers do, to rational agents alone, is sadly to abridge the view of its binding force. The rigid application of physical laws is brought home to us daily by science and by experience: it is a point gained, to come to understand that the moral law, being ultimately one with those physical laws, is no less absolute and indefeasible, though in a different manner, than they. It is hard for us to conceive of laws being given to senseless things. We cannot ourselves prescribe to iron or to sulphur the manner of its action. As Bacon says (_Novum Organum_, i., Aphorism 4): "Man can only put natural bodies together or asunder: nature does the rest within." That is, man cannot make the laws of nature: he can only arrange collocations of materials so as to avail himself of those laws. But God makes the law, issuing His command, the warrant without which no creature could do anything, that every creature, rational and irrational, shall act each according to its kind or nature. Such is the Eternal Law.