This, in its simplest form, is the so-called argument of modern materialism. Argument, however, it is quite plain it is not. It is a mere dogmatic statement, that can give no logical account of itself, and must trust, for its acceptance, to the world's vague sense of its fitness. The modern world, it is true, has mistaken it for an argument, and has been cowed by it accordingly; but the mistake is a simple one, and can be readily accounted for. The dogmatism of denial was formerly a sort of crude rebellion, inconsistent with itself, and vulnerable in a thousand places. Nature, as then known, was, to all who could weigh the wonder of it, a thing inexplicable without some supernatural agency. Indeed, marks of such an agency seemed to meet men everywhere. But now all this has changed. Step by step science has been unravelling the tangle, and has loosened with its human fingers the knots that once seemed deo digni vindice. It has enabled us to see in nature a complete machine, needing no aid from without. It has made a conception of things rational and coherent that was formerly absurd and arbitrary. Science has done all this; but this is all that it has done. The dogmatism of denial it has left as it found it, an unverified and unverifiable assertion. It has simply made this dogmatism consistent with itself. But in doing this, as men will soon come to see, it has done a great deal more than its chief masters bargained for. Nature, as explained by science, is nothing more than a vast automaton; and man with all his ways and works is simply a part of Nature, and can, by no device of thought, be detached from or set above it. He is as absolutely automatic as a tree is, or as a flower is; and is an incapable as a tree or flower of any spiritual responsibility or significance. Here we see the real limits of science. It will explain the facts of life to us, it is true, but it will not explain the value that hitherto we have attached to them. Is that solemn value a fact or fancy? As far as proof and reason go, we can answer either way. We have two simple and opposite statements set against each other, between which argument will give us no help in choosing, and between which the only arbiter is a judgment formed upon utterly alien grounds. As for proof, the nature of the case does not admit of it. The world of moral facts, if it existed a thousand times, could give no more proof of its existence than it does now. If on other grounds we believe that it does exist, then signs, if not proofs of it, at once surround us everywhere. But let the belief in its reality fail us, and instantly the whole cloud of witnesses vanishes. For science to demand a proof that shall convince it on its own premisses is to demand an impossibility, and to involve a contradiction in terms. Science is only possible on the assumption that nature is uniform. Morality is only possible on the assumption that this uniformity is interfered with by the will. The world of morals is as distinct from the world of science as a wine is from the cup that holds it; and to say that it does not exist because science can find no trace of it, is to say that a bird has not flown over a desert because it has left no footprints in the sand. And as with morals, so it is with religion. Science will allow us to deny or to affirm both. Reason will not allow us to deny or affirm only one.

[33] The argument has been used in this exact form by Professor Clifford.

[34] Dreams and Realities, by Leslie Stephen.

[35] The feebleness and vacillation of Dr. Tyndall's whole views of things, as soon as they bear on matters that are of any universal moment, is so typical of the entire positive thought of the day, that I may with advantage give one or two further illustrations of it. Although in one place he proclaims loudly that the emergence of consciousness from matter must ever remain a mystery, he yet shows indication of a hope that it may yet be solved. He quotes with approval, and with an implication that he himself leans to the view expressed in them, the following words of Ueberweg, whom he calls 'one of the subtlest heads that Germany has produced.' 'What happens in the brain, says Ueberweg, 'would in my opinion not be possible if the process which here appears in its greatest concentration, did not obtain generally, only in a vastly diminished degree. Take a pair of mice, and a cask of flour. By copious nourishment the animals increase and multiply, and in the same proportion sensations and feelings augment. The quantity of these preserved by the first pair is not simply diffused among their descendants, for in that case the last would feel more fully than the first. The sensations and the feelings must necessarily be referred back to the flour, where they exist, weak and pale, it is true, and not concentrated, as in the brain.' 'We may not,' Dr. Tyndall adds, by way of a gloss to this, 'be able to taste or smell alcohol in a tub of fermented cherries, but by distillation we obtain from them concentrated Kirschwasser. Hence Ueberweg's comparison of the brain to a still, which concentrates the sensation and feeling pre-existing, but diluted, in the food.'

Let us now compare this with the following. 'It is no explanation,' says Dr. Tyndall, 'to say that objective and subjective are two sides of one and the same phenomenon. Why should phenomena have two sides? There are plenty of molecular motions which do not exhibit this two-sidedness. Does water think or feel when it runs into frost-ferns upon a window pane? If not, why should the molecular motions of the brain be yoked to this mysterious companion consciousness?'

Here we have two views, diametrically opposed to each other, the one suggested with approval, and the other implied as his own, by the same writer, and in the same short essay. The first view is that consciousness is the general property of all matter, just as motion is. The second view is that consciousness is not the general property of matter, but the inexplicable property of the brain only.

Here again we have a similar inconsistency. Upon one page Dr. Tyndall says that when we have 'exhausted physics, and reached its very rim, a mighty Mystery stills looms beyond us. We have made no step towards its solution. And thus it will ever loom.' And on the opposite page he says thus: 'If asked whether science has solved, or is likely in our day to solve, the problem of the universe, I must shake my head in doubt.'

Further, I will remind the reader of Dr. Tyndall's arguments, on one occasion, against any outside builder or creator of the material universe. He argued that such did not exist, because his supposed action was not definitely presentable. 'I should enquire after its shape,' he says:—'Has it legs or arms? If not, I would wish it to be made clear to me how a thing without these appliances can act so perfectly the part of a builder? He challenged the theist (the theist addressed at the time was Dr. Martineau) to give him some account of his God's workings; and 'When he does this,' said Dr. Tyndall, 'I shall "demand of him an immediate exercise" of the power "of definite mental presentation."' If he fails here, Dr. Tyndall argues, his case is at once disproved; for nothing exists that is not thus presentable. Let us compare this with his dealing with the fact of consciousness. Consciousness, he admits, is not thus presentable; and yet consciousness, he admits, exists.

Instances might be multiplied of the same vacillation and confusion of thought—the same feminine inability to be constant to one train of reasoning. But those just given suffice. What weight can we attach to a man's philosophy, who after telling us that consciousness may possibly be an inherent property of matter, of which 'the receit of reason is a limbec only,' adds in the same breath almost, that matter generally is certainly not conscious, and that consciousness comes to the brain we know not whence nor wherefore? What shall we say of a man who in one sentence tells us that it is impossible that science can ever solve the riddle of things, and tells us in the next sentence that it is doubtful if this impossibility will be accomplished within the next fifty years?—who argues that God is a mystery, and therefore God is a fiction; who admits that consciousness is a fact, and yet proclaims that it is a mystery; and who says that the fact of matter producing consciousness being a mystery, proves the mystery of consciousness acting on matter to be a fact?

[36] It is true that one of the favourite teachings of the positive school is, that as to this question the proper attitude is that of Agnosticism; in other words, that a state of perpetual suspense on this subject is the only rational one. They are asked, have we a soul, a will, and consequently any moral responsibility? And the answer is that they must shake their heads in doubt. It is true they tell us that it is but as men of science that they shake their heads. But Dr. Tyndall tells us what this admission means. 'If the materialist is confounded,' he says, 'and science rendered dumb, who else is prepared with an answer? Let us lower our heads and acknowledge our ignorance, priest and philosopher—one and all.' In like manner, referring to the feeling which others have supposed to be a sense of God's presence and majesty: this, for the 'man of science,' he says is the sense of a 'power which gives fulness and force, to his existence, but which he can neither analyse nor comprehend.' Which means, that because a physical specialist cannot analyse this sense, it is therefore incapable of analysis. A bishop might with equal propriety use just the same language about a glass of port wine, and argue with, equal cogency that it was a primary and simple element. What is meant is, that the facts of the materialist are the only facts we can be certain of; and because these can give man no moral guidance, that therefore man can have no moral guidance at all.