If this is really a scientific question, if it is a question not of moral philosophy only, but of biology, we are compelled to repudiate beauty as the criterion of spirituality. It is not, of course, meant by this that spirituality is not morally beautiful. Spirituality must be morally very beautiful—so much so that popularly one is justified in judging of religion by its beauty. Nor is it meant that morality is not a criterion. All that is contended for is that, from the scientific standpoint, it is not the criterion. We can judge of the crystal and the shell from many other standpoints besides those named, each classification having an importance in its own sphere. Thus we might class them according to their size and weight, their percentage of silica, their use in the arts, or their commercial value. Each science or art is entitled to regard them from its own point of view; and when the biologist announces his classification he does not interfere with those based on other grounds. Only, having chosen his standpoint, he is bound to frame his classification in terms of it.
It may be well to state emphatically, that in proposing a new classification—or rather, in reviving the primitive one—in the spiritual sphere we leave untouched, as of supreme value in its own province, the test of morality. Morality is certainly a test of religion—for most practical purposes the very best test. And so far from tending to depreciate morality, the bringing into prominence of the true basis is entirely in its interests—in the interests of a moral beauty, indeed, infinitely surpassing the highest attainable perfection on merely natural lines.
The warrant for seeking a further classification is twofold. It is a principle in science that classification should rest on the most basal characteristics. To determine what these are may not always be easy, but it is at least evident that a classification framed on the ultimate nature of organisms must be more distinctive than one based on external characters. Before the principles of classification were understood, organisms were invariably arranged according to some merely external resemblance. Thus plants were classed according to size as Herbs, Shrubs, and Trees; and animals according to their appearance as Birds, Beasts, and Fishes. The Bat upon this principle was a bird, the Whale a fish; and so thoroughly artificial were these early systems that animals were often tabulated among the plants, and plants among the animals. "In early attempts," says Herbert Spencer, "to arrange organic beings in some systematic matter, we see at first a guidance by conspicuous and simple characters, and a tendency toward arrangement in linear order. In successively later attempts, we see more regard paid to combinations of characters which are essential but often inconspicuous; and a gradual abandonment of a linear arrangement for an arrangement in divergent groups and re-divergent sub-groups."[96] Almost all the natural sciences have already passed through these stages; and one or two which rested entirely on external characters have all but ceased to exist—Conchology, for example, which has yielded its place to Malacology. Following in the wake of the other sciences, the classifications of Theology may have to be remodeled in the same way. The popular classification, whatever its merits from a practical point of view, is essentially a classification based on Morphology. The whole tendency of science now is to include along with morphological considerations the profounder generalizations of Physiology and Embryology. And the contribution of the latter science especially has been found so important that biology henceforth must look for its classification largely to Embryological characters.
But apart from the demand of modern scientific culture it is palpably foreign to Christianity, not merely as a Philosophy but as a Biology, to classify men only in terms of the former. And it is somewhat remarkable that the writers of both the Old and New Testaments seem to have recognized the deeper basis. The favorite classification of the Old Testament was into "the nations which knew God" and "the nations which knew not God"—a distinction which we have formerly seen to be, at bottom, biological. In the New Testament again the ethical characters are more prominent, but the cardinal distinctions based on regeneration, if not always actually referred to, are throughout kept in view, both in the sayings of Christ and in the Epistles.
What then is the deeper distinction drawn by Christianity? What is the essential difference between the Christian and the not-a-Christian, between the spiritual beauty and the moral beauty? It is the distinction between the Organic and the Inorganic. Moral beauty is the product of the natural man, spiritual beauty of the spiritual man. And these two, according to the law of Biogenesis, are separated from one another by the deepest line known to Science. This Law is at once the foundation of Biology and of Spiritual religion. And the whole fabric of Christianity falls into confusion if we attempt to ignore it. The Law of Biogenesis, in fact, is to be regarded as the equivalent in biology of the First Law of motion in physics: Every body continues in its state of rest or of uniform motion in a straight line, except in so far as it is compelled by force to change that state. The first Law of biology is: That which is Mineral is Mineral; that which is Flesh is Flesh; that which is Spirit is Spirit. The mineral remains in the inorganic world until it is seized upon by a something called Life outside the inorganic world; the natural man remains the natural man, until a Spiritual Life from without the natural life seizes upon him, regenerates him, changes him into a spiritual man. The peril of the illustration from the law of motion will not be felt at least by those who appreciate the distinction between Physics and biology, between Energy and Life. The change of state here is not as in physics a mere change of direction, the affections directed to a new object, the will into a new channel. The change involves all this, but is something deeper. It is a change of nature, a regeneration, a passing from death into life. Hence relatively to this higher life the natural life is no longer Life, but Death, and the natural man from the standpoint of Christianity is dead. Whatever assent the mind may give to this proposition, however much it has been overlooked in the past, however it compares with casual observation, it is certain that the Founder of the Christian religion intended this to be the keystone of Christianity. In the proposition That which is flesh is flesh, and that which is spirit is spirit, Christ formulates the first law of biological religion, and lays the basis for a final classification. He divides men into two classes, the living and the not-living. And Paul afterward carries out the classification consistently, making his entire system depend on it, and throughout arranging men, on the one hand as πνευματικός—spiritual, on the other as ψυχικός—carnal, in terms of Christ's distinction.
Suppose now it be granted for a moment that the character of the not-a-Christian is as beautiful as that of the Christian. This is simply to say that the crystal is as beautiful as the organism. One is quite entitled to hold this; but what he is not entitled to hold is that both in the same sense are living. He that hath the Son hath Life, and he that hath not the Son of God hath not Life. And in the face of this law, no other conclusion is possible than that that which is flesh remains flesh. No matter how great the development of beauty, that which is flesh is withal flesh. The elaborateness or the perfection of the moral development in any given instance can do nothing to break down this distinction. Man is a moral animal, and can, and ought to, arrive at great natural beauty of character. But this is simply to obey the law of his nature—the law of his flesh; and no progress along that line can project him into the spiritual sphere. If any one choose to claim that the mineral beauty, the fleshly beauty, the natural moral beauty, is all he covets, he is entitled to his claim. To be good and true, pure and benevolent in the moral sphere, are high and, so far, legitimate objects of life. If he deliberately stop here, he is at liberty to do so. But what he is not entitled to do is to call himself a Christian, or to claim to discharge the functions peculiar to the Christian life. His morality is mere crystallization, the crystallizing forces having had fair play in his development. But these forces have no more touched the sphere of Christianity than the frost on the window-pane can do more than simulate the external forms of life. And if he considers that the high development to which he has reached may pass by an insensible transition into spirituality, or that his moral nature of itself may flash into the flame of regenerate Life, he has to be reminded that in spite of the apparent connection of these things from one standpoint, from another there is none at all, or none discoverable by us. On the one hand, there being no such thing as Spontaneous Generation, his moral nature, however it may encourage it, cannot generate Life; while, on the other, his high organization can never in itself result in Life, Life being always the cause of organization and never the effect of it.
The practical question may now be asked, is this distinction palpable? Is it a mere conceit of Science, or what human interests attach to it? If it cannot be proved that the resulting moral or spiritual beauty is higher in the one case than in the other, the biological distinction is useless. And if the objection is pressed that the spiritual man has nothing further to effect in the direction of morality, seeing that the natural man can successfully compete with him, the questions thus raised become of serious significance. That objection would certainly be fatal which could show that the spiritual world was not as high in its demand for a lofty morality as the natural; and that biology would be equally false and dangerous which should in the least encourage the view that "without holiness" a man could "see the Lord." These questions accordingly we must briefly consider. It is necessary to premise, however, that the difficulty is not peculiar to the present position. This is simply the old difficulty of distinguishing spirituality and morality.
In seeking whatever light Science may have to offer as to the difference between the natural and the spiritual man, we first submit the question to Embryology. And if its actual contribution is small, we shall at least be indebted to it for an important reason why the difficulty should exist at all. That there is grave difficulty in deciding between two given characters, the one natural, the other spiritual, is conceded. But if we can find a sufficient justification for so perplexing a circumstance, the fact loses weight as an objection, and the whole problem is placed on a different footing.
The difference on the score of beauty between the crystal and the shell, let us say once more, is imperceptible. But fix attention for a moment, not upon their appearance, but upon their possibilities, upon their relation to the future, and upon their place in evolution. The crystal has reached its ultimate stage of development. It can never be more beautiful than it is now. Take it to pieces and give it the opportunity to beautify itself afresh, and it will just do the same thing over again. It will form itself into a six-sided pyramid, and go on repeating this same form ad infinitum as often as it is dissolved and without ever improving by a hair's breadth. Its law of crystallization allows it to reach this limit, and nothing else within its kingdom can do any more for it. In dealing with the crystal, in short, we are dealing with the maximum beauty of the inorganic world. But in dealing with the shell, we are not dealing with the maximum achievement of the organic world. In itself it is one of the humblest forms of the invertebrate sub-kingdom of the organic world; and there are other forms within this kingdom so different from the shell in a hundred respects that to mistake them would simply be impossible.
In dealing with a man of fine moral character, again, we are dealing with the highest achievement of the organic kingdom. But in dealing with a spiritual man we are dealing with the lowest form of life in the spiritual world. To contrast the two, therefore, and marvel that the one is apparently so little better than the other, is unscientific and unjust. The spiritual man is a mere unformed embryo, hidden as yet in his earthly chrysalis-case, while the natural man has the breeding and evolution of ages represented in his character. But what are the possibilities of this spiritual organism? What is yet to emerge from this chrysalis-case? The natural character finds its limits within the organic sphere. But who is to define the limits of the spiritual? Even now it is very beautiful. Even as an embryo it contains some prophecy of its future glory. But the point to mark is, that it doth not yet appear what it shall be.