[§ 32]. Interpreting the mazy nexus of phenomena only by the facts which science has revealed, and what conclusion are we driven to accept? Clearly, looking to what has been said in the last two sections, that from the time when the process of evolution first began,—from the time before the condensation of the nebula had showed any signs of commencing,—every subsequent change or event of evolution was necessarily bound to ensue; else force and matter have not been persistent. How then, it will be asked, did the vast nexus of natural laws which is now observable ever begin or continue to be? In this way. When the first womb of things was pregnant with all the future, there would probably have been existent at any rate not more than one of the formulæ which we now call natural laws. This one law, of course, would have been the law of gravitation. Here we may take our stand. It does not signify whether there ever was a time when gravitation was not,—i.e., if ever there was a time when matter, as we now know it, was not in existence;—for if there ever was such a time, there is no reason to doubt, but every reason to conclude, that the evolution of matter, as we now know it, was accomplished in accordance with law. Similarly, we are not concerned with the question as to how the law of gravitation came to be associated with matter; for it is overwhelmingly probable, from the extent of the analogy, that if our knowledge concerning molecular physics were sufficiently great, the existence of the law in question would be found to follow as a necessary deduction from the primary qualities of matter and force, just as we can now see that, when present, its peculiar quantitative action necessarily follows from the primary qualities of space.

Starting, then, with these data,—matter, force, and the law of gravitation,—what must happen? We have the strongest scientific reason to believe that the matter of the solar system primordially existed in a highly diffused or nebulous form. By mutual gravitation, therefore, all the substance of the nebula must have begun to concentrate upon itself, or to condense. Now, from this point onwards, I wish it to be clearly understood that the mere consideration of the supposed facts not admitting of scientific proof, or of scientific explanation if true, in no wise affects the certainty of the doctrine which these facts are here adduced to establish. Fully granting that the alleged facts are not beyond dispute, and that, even if true, innumerable other unknown and unknowable facts must have been associated with them—fully admitting, in short, that our ideas concerning the genesis of the solar system are of the crudest and least trustworthy character; still, if it be admitted, what at the present day only ignorance or prejudice can deny, viz., that, as a whole, evolution has been the method of the universe; then it follows that the doctrine here contended for is as certainly true as it would be were we fully acquainted with every cause and every change which has acted and ensued throughout the whole process of the genesis of things.

Now, bearing this caveat in mind, we have next to observe that when once the nebula began to condense, new relations among its constituent parts would, for this reason, begin to be established. "Given a rare and widely diffused mass of nebulous matter,... what are the successive changes that will take place? Mutual gravitation will approximate its atoms, but their approximation will be opposed by atomic repulsion, the overcoming of which implies the evolution of heat." That is to say, the condensation of the nebula as a whole of necessity implies at least the origination of these new material and dynamical relations among its constituent parts. "As fast as this heat partially escapes by radiation, further approximation will take place, attended by further evolution of heat, and so on continuously: the processes not occurring separately, as here described, but simultaneously, uninterruptedly, and with increasing activity." Hence the newly established relations continuously acquire new increments of intensity. But now observe a more important point. The previous essential conditions remaining unaltered—viz., the persistence of matter and force, as well as, or rather let us say and consequently, the law of gravitation—these conditions, I say, remaining constant, and the newly established relations would necessarily of themselves give origin to new laws. For whenever two given quantities of force and matter met in one of the novel relations, they would of necessity give rise to novel effects; and whenever, on any future occasion, similar quantities of force and matter again so met, precisely similar effects would of necessity require to occur: but the occurrence of similar effects under similar conditions is all that we mean by a natural law.

Continuing, then, our quotation from Mr. Herbert Spencer's terse and lucid exposition of the nebular theory, we find this doctrine virtually embodied in the next sentences:—"Eventually this slow movement of the atoms towards their common centre of gravity will bring about phenomena of another order.

"Arguing from the known laws of atomic combination, it will happen that, when the nebulous mass has reached a particular stage of condensation—when its internally situated atoms have approached to within certain distances, have generated a certain amount of heat, and are subject to a certain mutual pressure (the heat and pressure increasing as the aggregation progresses), some of them will suddenly enter into chemical union. Whether the binary atoms so produced be of kinds such as we know, which is possible, or whether they be of kinds simpler than any we know, which is more probable, matters not to the argument. It suffices that molecular combinations of some species will finally take place." We have, then, here a new and important change of relations. Matter, primordially uniform, has itself become heterogeneous; and in as many places as it has thus changed its state, it must, in virtue of the fact, give rise to other hitherto novel relations, and so, in many cases, to new laws.[[22]]

It would be tedious and unnecessary to trace this genesis of natural law any further: indeed, it would be quite impossible so to trace it for any considerable distance without feeling that the ever-multiplying mazes of relations renders all speculation as to the actual processes quite useless. This fact, however, as before insisted, in no wise affects the only doctrine which I here enunciate—viz., that the self-generation of natural law is a necessary corollary from the persistence of matter and force. And that this must be so is now, I hope, sufficiently evident. Just as in the first dawn of things, when the proto-binary compounds of matter gave rise to new relations together with their appropriate laws, so throughout the whole process of evolution, as often as matter acquired a hitherto novel state, or in one of its old states entered into hitherto novel relations, so often would non-existent or even impossible laws become at once possible and necessary. And in this way I cannot see that there is any reason to stop until we arrive at all the marvellous complexity of things as they are. For aught that speculative reason can ever from henceforth show to the contrary, the evolution of all the diverse phenomena of inorganic nature, of life, and of mind, appears to be as necessary and as self-determined as is the being of that mysterious Something which is Everything,—the Entity we must all believe in, which without condition and beyond relation holds its existence in itself.

[§ 33]. Does it still seem incredible that, notwithstanding it requires mental processes to interpret external nature, external nature may nevertheless be destitute of mind? Then let us look at the subject on its obverse aspect.

According to the theory of evolution—which, be it always remembered, is no mere gratuitous supposition, but a genuine scientific theory—human intelligence, like everything else, has been evolved. Now in what does the evolution of intelligence consist? Any one acquainted with the writings of our great philosopher can have no hesitation in answering: Clearly and only in the establishment of more and more numerous and complex internal or psychological relations. In other words, the law of intelligence being "that the strengths of the inner cohesions between psychical states must be proportionate to the persistences of the outer relations symbolised," it follows that the development of intelligence is "secured by the one simple principle that experience of the outer relations produces inner cohesions, and makes the inner cohesions strong in proportion as the outer relations are persistent." Now the question before us at present is merely this:—Must we not infer that these outer relations are regulated by mind, seeing that order is undoubtedly apparent among them, and that it requires mental processes on our part to interpret this order? The only legitimate answer to this question is, that these outer relations may be regulated by mind, but that, in view of the evolution theory, we are certainly not entitled to infer that they are so regulated, merely because it requires mental processes on our part to interpret their orderly character. For if it is true that the human mind was itself evolved by these outer relations—ever continuously moulded into conformity with them as the prime condition of its existence—then its process of interpreting them is but reflecting (as it were) in consciousness these outer relations by which the inner ones were originally produced. Granting that, as a matter of fact, an objective macrocosm exists, and if we can prove or render probable that this objective macrocosm is of itself sufficient to evolve a subjective microcosm, I do not see any the faintest reason for the latter to conclude that a self-conscious intelligence is inherent in the former, merely because it is able to trace in the macrocosm some of those orderly objective relations by which its own corresponding subjective relations were originally produced. If it is said that it is impossible to conceive how, apart from mind, the orderly objective relations themselves can ever have originated, I reply that this is merely to shift the ground of discussion to that which occupied us in the last section: all we are now engaged upon is,—Granting that the existence of such orderly relations is actual, whether with or without mind to account for them; and granting also that these relations are of themselves sufficient to produce corresponding subjective relations; then the mere fact of our conscious intelligence being able to discover numerous and complex outer relations answering to those which they themselves have caused in our intelligence, does not warrant the latter in concluding that the causal connection between intelligence and non-intelligence has ever been reversed—that these outer relations in turn are caused by a similar conscious intelligence. How such a thing as a conscious intelligence is possible is another and wholly unanswerable question (though not more so than that as to the existence of force and matter, and would not be rendered less so by merging the fact in a hypothetical Deity); but granting, as we must, that such an entity does exist, and supposing it to have been evolved by natural causes, then it would appear incontestably to follow, that whether or not objective existence is presided over by objective mind, our subjective mind would alike and equally require to read in the facts of the external world an indication, whether true or false, of some such presiding agency. The subjective mind being, by the supposition, but the obverse aspect of the sum total of such among objective relations as have had a share in its production, when, as in observation and reflection, this obverse aspect is again inverted upon its die, it naturally fits more or less exactly into all the prints.

[§ 34]. This last illustration, however, serves to introduce us to another point. The supposed evidence from which the existence of mind in nature is inferred does not always depend upon such minute correspondences between subjective method and objective method as the illustration suggests. Every natural theologian has experienced more or less difficulty in explaining the fact, that while there is a tolerably general similarity between the contrivances due to human thought and the apparent contrivances in nature which he regards as due to divine thought, the similarity is nevertheless only general. For instance, if a man has occasion to devise any artificial appliance, he does so with the least possible cost of labour to himself, and with the least possible expenditure of material. Yet it is obvious that in nature as a whole no such economic considerations obtain. Doubtless by superficial minds this assertion will be met at first with an indignant denial: they have been accustomed to accumulate instances of this very principle of economy in nature; perhaps written about it in books, and illustrated it in lectures,—totally ignoring the fact that the instances of economy in nature bear no proportion at all to the instances of prodigality. Conceive of the force which is being quite uselessly expended by all the wind-currents which are at this moment blowing over the face of Europe. Imagine the energy that must have been dissipated during the secular cooling of this single planet. Feebly try to think of what the sun is radiating into space. If it is retorted that we are incompetent to judge of the purposes of the Almighty, I reply that this is but to abandon the argument from economy whenever it is found untenable: we presume to be competent judges of almighty purposes so long as they appear to imitate our own; but so soon as there is any divergence observable, we change front. By thus selecting all the instances of economy in nature, and disregarding all the vastly greater instances of reckless waste, we are merely laying ourselves open to the charge of an unfair eclecticism. And this formal refutation of the argument from economy admits of being further justified in a strikingly substantial manner; for if all the examples of economy in nature that were ever observed, or admit being observed, were collected into one view, I undertake to affirm that, without exception, they would be found to marshal themselves in one great company—the subjects whose law is survival of the fittest. One question only will I here ask. Is it possible at the present day for any degree of prejudice, after due consideration, to withstand the fact that the solitary exceptions to the universal prodigality so painfully conspicuous in nature are to be found where there is also to be found a full and adequate physical explanation of their occurrence?

But, again, prodigality is only one of several particulars wherein the modes and the means of the supposed divine intelligence differ from those of its human counterpart. Comparative anatomists can point to organic structures which are far from being theoretically perfect: even the mind of man in these cases, notwithstanding its confessed deficiencies in respect both of cognitive and cogitative powers, is competent to suggest improvements to an intelligence supposed to be omniscient and all-wise! And what shall we say of the numerous cases in which the supposed purposes of this intelligence could have been attained by other and less roundabout means? In short, not needlessly to prolong discussion, it is admitted, even by natural theologians themselves, that the difficulties of reconciling, even approximately, the supposed processes of divine thought with the known processes of human thought are quite insuperable. The fact is expressed by such writers in various ways,—e.g., that it would be presumptuous in man to expect complete conformity in all cases; that the counsels of God are past finding out; that his ways are not as our ways, and so on. Observing only, as before, that in thus ignoring adverse cases natural theologians are guilty of an unfair eclecticism, it is evident that all such expressions concede the fact, that even in those provinces of nature where the evidence of superhuman intelligence appears most plain, the resemblance of its apparent products to those of human intelligence consists in a general approximation of method rather than in any precise similarity of particulars: the likeness is generic rather than specific.