The arguments which operate against religion with the leaders of modern thought, and through their intellectual example on the world at large, divide themselves into three classes, and are derived from three distinct branches of thought and study. They may be distinguished as physical, moral, and historical. Few of these arguments, taken separately, can be called altogether new. Their new power has been caused by the simultaneous filling up and completion of all of them; by their transmutation from filmy visions into massive and vast realities; from unauthorised misgivings into the most rigid and compelling of demonstrations: and still more, by the brilliant and sudden annihilation of the most obvious difficulties, which till very lately had neutralised and held their power in check.

Of these three sets of arguments, the two first bear upon all religion, whilst the third bears upon it only as embodied in some exclusive form. Thus the physicist argues, for example, that consciousness being a function of the brain, unless the universe be a single brain itself, there can be no conscious God.[33] The moral philosopher argues that sin and misery being so prevalent, there can be no Almighty and all-merciful God. And the historian argues that all alleged revelations can be shown to have had analogous histories; and that therefore, even if God exists, there is no one religion through which He has specially revealed Himself. These are rough specimens solubly, so far as observation can carry us, mind with matter. The great gulf between the two has at last been spanned. The bridge across it, that was so long seen in dreams and despaired of, has been thrown triumphantly—a solid compact fabric, on which a hundred intellectual masons are still at work, adding stone on ponderous stone to it. Science, to put the matter in other words, has accomplished these three things. Firstly, to use the words of a well-known writer, 'it has established a functional relation to exist between every fact of thinking, willing, or feeling, on the one side, and some molecular change in the body on the other side.' Secondly, it has connected, through countless elusive stages, this organic human body with the universal lifeless matter. And thirdly, it claims to have placed the universal matter itself in a new position for us, and to exhibit all forms of life as developed from it, through its own spontaneous motion. Thus for the first time, beyond the reach of question, the entire sensible universe is brought within the scope of the physicist. Everything that is, is matter moving. Life itself is nothing but motion of an infinitely complex kind. It is matter in its finest ferment. The first traceable beginnings of it are to be found in the phenomenon of crystallisation; we have there, we are told by the highest scientific authority, 'the first gropings of the so-called vital force;' and we learn from the same quarter, that between these and the brain of Christ there is a difference in degree only, not in kind: they are each of them 'an assemblage of molecules, acting and re-acting according to law.' 'We believe,' says Dr. Tyndall, 'that every thought and every feeling has its definite mechanical correlative—that it is accompanied by a certain breaking up and re-marshalling of the atoms of the brain.' And though he of course admits that to trace out the processes in detail is infinitely beyond our powers, yet 'the quality of the problem and of our powers,' he says, 'are, we believe, so related, that a mere expansion of the latter would enable them to cope with the former.' Nowhere is there any break in Nature; and 'supposing,' in Dr. Tyndall's words, 'a planet carved from the sun, set spinning on an axis, and sent revolving round the sun at a distance equal to that of our earth,' science points to the conclusion that as the mass cooled, it would flower out in places into just such another race as ours—creatures of as large discourse, and, like ourselves, looking before and after. The result is obvious. Every existing thing that we can ever know, or hope to know, in the whole inward as well as in the whole outward world—everything from a star to a thought, or from a flower to an affection, is connected with certain material figures, and with certain mechanical forces. All have a certain bulk and a certain place in space, and could conceivably be made the subjects of some physical experiment. Faith, sanctity, doubt, sorrow, and love, could conceivably be all gauged and detected by some scientific instrument—by a camera or by a spectroscope; and their conditions and their intensity be represented by some sort of diagram.

These marvellous achievements, as I have said, have been often before dreamed of. Now they are accomplished. As applied to natural religion, the effect of them is as follows.

Firstly, with regard to God, they have taken away every external proof of His existence, and, still more, every sign of His daily providence. They destroy them completely at a sudden and single blow, and send them falling about us like so many dead flies. God, as connected with the external world, was conceived of in three ways—as a Mover, as a Designer, and as a Superintendent. In the first two capacities He was required by thought; in the last, He was supposed to be revealed by experience. But now in none of these is He required or revealed longer. So far as thought goes, He has become a superfluity; so far as experience goes, He has become a fanciful suggestion.

Secondly, with regard to man, the life and soul are presented to us, not as an entity distinct from the body, and therefore capable of surviving it, but as a function of it, or the sum of its functions, which has demonstrably grown with its growth, which is demonstrably dependent upon even its minutest changes, and which, for any sign or hint to the contrary, will be dissolved with its dissolution.

A God, therefore, that is the master of matter, and a human soul that is independent of it—any second world, in fact, of alien and trans-material forces, is reduced, on physical grounds, to an utterly unsupported hypothesis. Were this all, however, it would logically have on religion no effect at all. It would supply us with nothing but the barren verbal proposition that the immaterial was not material, or that we could find no trace of it by merely studying matter. Its whole force rests on the following suppressed premiss, that nothing exists but what the study of matter conceivably could reveal to us; or that, in other words, the immaterial equals the nonexistent. The case stands thus. The forces of thought and spirit were supposed formerly to be quite distinct from matter, and to be capable of acting without the least connection with it. Now, it is shown that every smallest revelation of these to us, is accomplished by some local atomic movement, which, on a scientific instrument fine enough, would leave a distinct impression; and thus it is argued that no force is revealed through matter that is not inseparable from the forms revealing it. Here we see the meaning of that great modern axiom, that verification is the test of truth; or that we can build on nothing as certain but what we can prove true. The meaning of the word 'proof' by itself may perhaps be somewhat hazy; but the meaning that positive science attaches to it is plain enough. A fact is only proved when the evidence it rests upon leaves us no room for doubt—when it forces on every mind the same invincible conviction; that is, in other words, when, directly or indirectly, its material equivalent can be impressed upon our bodily senses.

This is the fulcrum of the modern intellectual lever. Ask anyone oppressed and embittered by the want of religion the reason why he does not again embrace it, and the answer will still be this—that there is no proof that it is true. Granting, says Professor Huxley, that a religious creed would be beneficial, 'my next step is to ask for a proof of its dogmas.' And with contemptuous passion another well-known writer, Mr. Leslie Stephen, has classified all beliefs, according as we can prove or not prove them, into realities and empty dreams. 'The ignorant and childish,' he says, 'are hopelessly unable to draw the line between dreamland and reality; but the imagery which takes its rise in the imagination as distinguished from the perceptions, bears indelible traces of its origin in comparative unsubstantiality and vagueness of outline.' And 'now,' he exclaims, turning to the generation around him, 'at last your creed is decaying. People have discovered that you know nothing about it; that heaven and hell belong to dreamland; that the impertinent young curate who tells me that I shall be burnt everlastingly for not sharing his superstition, is just as ignorant as I myself, and that I know as much as my dog.'[34]

Such is that syllogism of the physical sciences which is now supposed to be so invincible against all religion, and which has already gone so far towards destroying the world's faith in it. Now as to the minor premiss, that there is no proof of religion, we may concede, at least provisionally, that it is completely true. What it is really important to examine is the major premiss, that we can be certain of nothing that we cannot support by proof. This it is plain does not stand on the same footing as the former, for it is of its very nature not capable of being proved itself. Its foundation is something far less definable—the general character for wisdom of the leading thinkers who have adopted it, and the general acceptance of its consequences by the common sense of mankind.

Now if we examine its value by these tests, the result will be somewhat startling. We find that not only are mankind at large as yet but very partially aware of its consequences, but that its true scope and meaning has not even dawned dimly on the leading thinkers themselves. Few spectacles, indeed, in the whole history of thought are more ludicrous than that of the modern positive school with their great doctrine of verification. They apply it rigorously to one set of facts, and then utterly fail to see that it is equally applicable to another. They apply it to religion, and declare that the dogmas of religion are dreams; but when they pass from the dogmas of religion to those of morality, they not only do not use their test, but unconsciously they denounce it with the utmost vehemence. Thus Mr. Leslie Stephen, in the very essay from which I have just now quoted, not only has recourse, for giving weight to his arguments, to such ethical epithets as low, lofty, and even sacred, but he puts forward as his own motive for speaking, a belief which on his own showing is a dream. That motive, he says, is devotion to truth for its own sake—the only principle that is really worthy of man. His argument is simply this. It is man's holiest and most important duty to discover the truth at all costs, and the one test of truth is physical verification. Here he tells us we find the only high morality, and the men who cling to religious dream-dogmas which they cannot physically verify, can only answer their opponents, says Mr. Stephen, 'by a shriek or a sneer.' 'The sentiment,' he proceeds, 'which the dreamer most thoroughly hates and misunderstands, is the love of truth for its own sake. He cannot conceive why a man should attack a lie simply because it is a lie.' Mr. Stephen is wrong. That is exactly what the dreamer can do, and no one else but he; and Mr. Stephen is himself a dreamer when he writes and feels like this. Why, let me ask him, should the truth be loved? Do the 'perceptions,' which are for him the only valid guides, tell him so? The perceptions tell him, as he expressly says, that the truths of nature, so far as man is concerned with them, are 'harsh' truths. Why should 'harsh' things be loveable? Or supposing Mr. Stephen does love them, why is that love 'lofty'? and why should he so brusquely command all other men to share it? Low and lofty—what has Mr. Stephen to do with words like these? They are part of the language of dreamland, not of real life. Mr. Stephen has no right to them. If he has, he must be able to draw a hard and fast line between them; for if his conceptions of them be 'vague in outline' and 'unsubstantial,' they belong by his own express definition to the land of dreams. But this is what Mr. Stephen, with the solemn imbecility of his school, is quite incapable of seeing. Professor Huxley is in exactly the same case. He says, as we have seen already, that, come what may of it, our highest morality is to follow truth; that the 'lowest depth of immorality' is to pretend to believe what we see no reason for believing;' and that our only proper reasons for belief are some physical, some perceptible evidence. And yet at the same time he says that to 'attempt to upset morality' by the help of the physical sciences is about as rational or as possible as to 'attempt to upset Euclid by the help of the Rig Veda.' Now on Professor Huxley's principles, this last sentence, though it sounds very weighty, is, if so ungracious a word may be allowed me, nothing short of nonsense. It would be the lowest depth of immorality, he says, to believe in God, when we see that there is no physical evidence to justify the belief. And physical science in this way he admits—he indeed proclaims—has upset religion. How then has physical science in the same way failed to upset morality? The foundation of morality, he says, is the belief that truth for its own sake is sacred. But what proof can he discover of this sacredness? Does any positive method of experience or observation so much as tend to suggest it? We have already seen that it does not. What Professor Huxley's philosophy really proves to him is that it is true that nothing is sacred; not that it is a sacred thing to discover the truth.

We saw all this already when we were examining his comparison of the perception of moral beauty to the perception of the heat of ginger. It is the same thing with which we are again dealing now, only we are approaching it from a slightly different point of view. What we saw before, was that without an assent to the religious dogmas, the moral dogmas can have no logical meaning. We have now seen that even were the two logically independent, they yet belong both of them to the same order of things; and that if our tests of truth prove the former to be illusions, they will, with precisely the same force, prove the same thing of the latter.