What became of flower and herb, of creatures that live between the zones of high and low water, of mollusk and coral and fish that require an appropriate depth and a fitting temperature in their liquid homes, it will be useless to speculate, if, after all that has been urged upon other points, there are some who still think that the description in Genesis is the description of a Flood that prevailed over all the world, and intend still to believe in such a Flood, and to teach it as a part of religious doctrine, notwithstanding any argument or scientific proof to the contrary. For them we can do no more than commend to their daily reflection a few lines from the lives of two famous men:—‘In spite,’ says Dr. Wilson, ‘alike of the science and the devout religious spirit of Columbus, the Salamanca divines pronounced the idea of the earth’s spherical form heterodox, and a belief in antipodes incompatible with the historical traditions of our faith: since to assert that there were inhabited lands on the opposite side of the globe would be to maintain that there were nations not descended from Adam, it being impossible for them to have passed the intervening ocean. This would therefore be to discredit the Bible, which expressly declares that all men are descended from one common parent[29].’ And thus another author describes a well-known incident in the life of Galileo:—‘Clad in a penitent’s sackcloth, the mighty, self-relying philosopher and genius fell upon his knees, and, with his hands laid on the Holy Evangelists, declared that he abjured, detested, and would never again teach, the doctrine of the sun’s stability and the earth’s motion. Having confirmed his oath in writing, and promised to perform the enjoined penance, he rose from his knees a pardoned man; and turning about to one of his friends, stamped on the ground, and pronounced in an emphatic whisper, “Eppure si muove[30],”—but still it does move.’
As the antipodes exist, as the earth goes round the sun, and as the Bible continues to be true, in spite of the theologians and inquisitors at Salamanca and at Rome, so will it continue to be true and full of truth, when at length it shall be acknowledged, as it will be, that there is nothing universal about the Noachian Deluge except the disbelief in its universality.
INSTINCT AND REASON.
An initial probability has been established by Mr. Darwin and Mr. Wallace that the reason or mind of man, as well as his body, has attained its present complete excellence through gradual development. No one denies that, between a man’s birth and his prime of life, time is required for the intellectual powers to unfold; but it demands an effort which few have as yet made to see in this progression of the individual mind a compendious history of the indefinitely slow process by which the human mind itself has been formed, passing upward, step by step, from simple vitality, dawning consciousness, the various grades of so-called instinct, to the full capacities of the most enlightened reason.
The theory of development or evolution has excited immense opposition and distrust, because of its obvious application to the human body. Its application to the human mind, which, though less obvious at the first glance, almost inevitably follows, seems to have inspired Mr. Wallace himself with alarm. He winds up the admirable series of essays in which he supports the theory under discussion with one that earnestly propounds ‘the limits of natural selection as applied to man.’ His arguments on this subject are drawn from physical science, though his mind is evidently, and even confessedly, swayed throughout by other than physical considerations. He represents, in fact, and endeavours to reconcile to his own scientific views, the weight of popular prejudice which has hitherto condemned those views with some vehemence of opposition.
The sentiment in question amounts to this, that certain powers or faculties of the human mind are so wonderful and so unique, that they could not have originated in the ordinary processes of nature without some special intervention. Antecedents conforming to the usual observed order in other living productions are not sufficiently magnificent for the soul of man. Something sudden, something mysterious, is demanded in the agency of its creation. It must be like Pallas Athene, springing from the brain of Zeus, a goddess fully armed from her birth in the panoply of wisdom and virtue. Yet the whole feeling thus to be described of what is fit and worthy must be accredited, as we desire to show, simply to prejudice. Nothing can really depend for its intrinsic grandeur upon our knowledge or ignorance of its origin. A single cause instantaneously producing its effect does not make the result in any way more admirable or magnificent than the like result coming at the close of an indefinitely extended chain of causation. Feelings of surprise and wonder are excited when we find that ten thousand copies of the Times newspaper can be printed within a single hour; but the same feelings move us in the granite-yards of Scotland, when we learn that many months are required for cutting through a single block. At the first proposal of railways, a pace of twenty or five-and-twenty miles an hour was thought too wonderful for belief; while now, from familiarity with far higher rates of speed, we think it miserably slow. A child is surprised to learn that the light of the sun requires time to reach the eye; but a new and even greater surprise is aroused by the information that the time so required is only a few minutes for ninety millions of miles. The swiftness of thought is proverbial. A single act of thought is commonly supposed to be absolutely instantaneous; and yet presence of mind, which depends on rapidity of thought, is fully recognized as an uncommon quality, while it has now been ascertained by experiment that every thought requires a definite, and in many cases measurable, length of time for its production and exercise. Following the analogy of these illustrations, we may expect that the popular opinion or prejudice as to the instantaneous creation of the human mind will vanish and subside when men become familiar with the idea of its slow development. It will at least be seen that there is no special dignity and grandeur in the supposed suddenness of its introduction into the universe. The general scheme of nature, so far as we can penetrate its working, seems to show that there is some proportion observed between the time spent in producing and the perfection of the thing produced. Religion itself is an unquestionable witness to this method of procedure. There is no great religion of which the adherents claim to have had it revealed to them from the first in its full perfection. What is true of religion, is true of all arts and sciences. Their progress has been gradual. The greatness of nations, even when it seems to blaze forth in history most suddenly, ever finds its true origin in numerous steps of slow preparation. A hardy, frugal tribe of warriors is nursed in some obscure mountain cradle. The struggle for existence fosters their preservative virtues. A line of rulers is evoked, forced by the circumstances of their tenure to acquire, as their leading qualities, cunning, prudence, self-control, fertility of resource, promptitude of action, till at length the hour and the man coincide, and a handful of barbarians give their name to a great empire. The same rule prevails with languages, and the literatures that adorn them. So fully is this established in regard to literature, that men who examine the subject deeply are almost led to disbelieve in originality of genius altogether, from the invariable indebtedness of the noblest authors to the thoughts and imaginings of earlier minds. There is, therefore, no antecedent improbability that can fairly be pleaded against the gradual development of the human mind. On the contrary, every possible analogy is in its favour. A supposition so favoured becomes at least a lawful and reasonable subject of enquiry. If it be true that the theory of evolution applies to the mind of man, we should expect to find in that mind itself traces of the earlier steps, or grades of development, through which it has passed, and also in the world around creatures lower than humanity in some sort representing those earlier stages of slowly unfolding reason. In other words, we should expect to find in human nature itself those very inequalities, that very conflict of the higher and the lower elements on which moralists so urgently insist, and we should expect to find affinities and resemblances, more or less close, pervading the whole animal creation, and exhibiting human reason and brute intelligence as, upon a broad view, one in kind, however different in degree.
The first requisite for intelligence is the possession of memory. Without this faculty, intelligence is impossible; but, on the other hand, memory that does not subserve some sort of intelligence, is a useless faculty; and in this the old theory of creation agrees with the new, that nothing obtains a footing in the world without a use. It may be urged, that the human memory is incomparably superior to that of the lower animals; but there are surprising differences in the powers of memory among human beings, and the effects of cultivation, with the facilities for that cultivation supplied by language, should be taken into account. It is important to observe also, that with brutes, as with men, some individuals are quicker than others; that the memory of brutes, like our own, can be improved by training; and that its powers are not equally distributed to all classes. The dog, the horse, the parrot, the elephant, are probably not further below mankind in the faculty of memory, than they are superior in it to the oyster and the jelly-fish.
To make the most of humanity, without introducing the question of man’s material form and structure, one would naturally insist upon his docility or power of being taught; upon his versatility or power of adapting various means to the same or various ends; upon his moral nature, embracing the different passions and affections, and the knowledge of good and evil; and, lastly, no doubt, one would be inclined and one would have a right to insist on the grandeur of his aspirations. A crafty rhetorician would perhaps dwell on the collective value of these endowments, and then exhibit them, separately, rising to their height and fulness in men like Archimedes, and Chrysostom, and Dante. He would dare us to trace back the mental ancestry of these true heroes to apes and fishes. Yet the reason, piety, and imagination of such men, are themselves developed between childhood and maturity; their very pre-eminence shows that improvement in such qualities is possible from one generation to another, and that therefore meanness of origin needs only to be coupled with remoteness in time to reconcile the supremacy of man’s intelligence with its ultimate derivation from the lowest powers of consciousness.