Even our alphabet has been evolved. The twenty-six symbols composing it have been eroded into the peculiar forms in which they appear at present by the various peoples through whose hands they have come to us. The originals were pictographs such as are still found on the aged monuments of earth’s earliest civilisations. The English got their alphabet from the Romans, who obtained it, along with almost everything else they had, from the Greeks. The Greeks received it from the Phenicians, and the Phenicians from the papyrus writers of Egypt, who in turn procured it from those hieroglyph chiselers who carved their curious literature on the granite tombs of the Nile in the remotest dawn of human history. A, the first letter of our alphabet, is a figure which has been evolved, as the result of long wear and tear, from the picture of an eagle; B was originally the picture of a crane; C represents a throne; D a hand; F an asp; H a sieve; K a bowl; L a lioness; M an owl; N a water-line; R a mouth; S a garden; T a lasso; X a chairback; and Z a duck.
The psychology of civilised man, though derived from that of the savage, and hence resembling it fundamentally, is, nevertheless, very different from it, both in character and in what it contains. The mind of the savage is rude, unresourceful, vicious, and childlike, while that of the civilised man or woman may be overflowing with wisdom and benignity. This gulf has not been covered by a stride, but by the slow operation of the same laws of Inheritance, Variation, and Selection by which all progress has been brought about.
7. Degeneration is a necessary part of the process of organic evolution. All progress, whether anatomical, intellectual, or social, takes place through selection, and selection means the pining and ultimate passing away of that which is left. In individual evolution it is organs, ideas, and traits of character that are eliminated, and in social evolution it is customs and institutions. One of the reasons given in the preceding chapter for the belief in the evolution of structures is the existence in man and other animals of vestigial organs, organs which in lower forms of life are useful, but which in higher forms are represented by useless or even injurious remnants. Similar remnants are found in the psychology of man and other animals. These vestiges of mind are not so easily recognised as the vestiges of structure, but they are everywhere. We find them in the antiquated instincts of man and the domestic animals, in the silent letters and worn-out words of languages, and in the emaciated remains of abandoned beliefs and institutions.
The hunting and fishing instinct of civilised man is a vestigial instinct, normal in the savage, but without either sense or decency among men devoted to industrial pursuits. The savage hunts and fishes because he is hungry, never for pastime; civilised men and women do so because they are too mechanical to assort their impulses. Civilised man is a mongrel, a cross between a barbarian and a god. His psychology is a compound of the jungle and the sky. In their loftier moments, many men are able to obscure the cruder facts of their origin and to put into temporary operation those more splendid processes of mind which characterise their ideals. But even the most civilised are forever haunted by the returning ghosts of departed propensities—propensities which grew up in ages of hate, which are now out-of-date, but which in the trying tedium of daily life come back and usurp the high places in human nature. Revenge, hate, cruelty, pugnacity, selfishness, vanity, and the like, are all more or less vestigial among men who have entered seriously on the life of altruism. Like the vermiform appendix and the human tail, these old obsolete parts of the human mind are destined, in the ripening of the ages, to waste away and disappear through disuse.
The practice of the dog of turning round two or three times before lying down is in response to an instinct which was no doubt beneficial to it in its wild life, when it was wont to make its bed in the grasses, but which is now a pure waste of time. Darwin records it as a fact, that he has himself seen a simple-minded dog turn round twenty times before lying down. The sheep-killing mania, which sometimes comes over dogs when three or four of them get together and become actuated by the ‘mob’ spirit, is a vestige of the old instinct of the carnivore which centuries of domestication have not yet quite erased. Goodness, if too prolonged, becomes irksome to dogs for the same reason that it does to men. Dogs have come from savages just as men have, and, while the civilised nature of the dog is more constitutional than that of civilised man, the old deposed instincts mount to the throne once in awhile, and the faithful collie is for the time being a wolf again. The instinct of domestic sheep to imitate their leader in leaping over obstacles is another probable survival of wild life. If a bar or other obstacle be placed where the leader of a flock of sheep is compelled to leap over it, and the obstacle is then removed, the entire band of followers will leap at the same place regardless of the fact that the obstruction is no longer there. No other animals do this. The instinct is probably a survival of wild life, when these animals, pursued by their enemies over chasms and precipices, were compelled to imitate in the flight those in front of them in order to live. Darwin thinks the donkey shows its aboriginal desert nature in its aversion for crossing the smallest stream, and its relish for rolling in the dust. The same aversion for everything aquatic exists also in the camel. Quails kept in captivity, I am told, persist in scratching at the pan when they are feeding, just as they would need to do, and were accustomed to do, among the leaves and grasses of the groves. The restlessness of cage-birds and domestic fowls at migrating time, the mimic dipping and sporting of ducks when confined to a terrestrial habitat, the grave marshalling of geese by the chief gander of the band, the ferocity of cows, ewes, and the females of other domestic animals during the first few days of motherhood, the hunting instinct of dogs kept as shepherds and pets, the squatting of young pigs when suddenly alarmed—all of these are vestigial instincts, functional in the wild state, but now useless and absurd.
The silent letters and superannuated words and phrases found everywhere in literature are the vestigial parts of language. Every silent letter was originally sounded, and every obsolete word was at one time used. In the French word, temps, for instance, which means ‘time,’ neither the p nor the s is sounded. But in the Latin word tempus, from which the French word is derived, all of the letters are sounded.
Man has been defined as a creature of habit. As he has done a thing once, or as his ancestors have done a thing, so he does it again. By precept and example he transmits to each new generation the customs, beliefs, and points of view which he has invented. Social changes take place with extreme moderation. The drowsy ages take plenty of time to get anywhere. Civilisation is lazy, deliberate, unimpassioned. It loafs and hesitates. It holds on to the past. Living civilisations always drag behind them a trail of traditions from dead civilisations. Religions and philosophies change, and creeds and governments flow into strange and undreamed-of forms; but their personalities survive, their souls live on, their remnants, transmitted as traditions from generation to generation, defy the meddlings of innovators. Hence in every society there are forms and ceremonies, laws and customs, games and symbols, etc., which have been completely diverted from their original purposes, or which have become so reduced in importance as to be of no use. Spencer has shown that the forms of salutation in vogue among civilised societies are the vestiges of primitive ceremonial used to denote submission. The May Day festivals with which the opening spring is usually hailed are the much-modified survivals of pagan festivals in honour of plant and animal fecundity. Superstition and folklore are vestigial opinions. The gorgeous Easter egg is a survival of a dawn myth older than the Pyramids, and our Christmas dinner is a reminiscence of a cannibal carnival celebrating the turning back of the sun at the winter solstice (Brinton). In the English government, where democracy has in recent centuries made such inroads on the monarchy, there are numerous examples of vestigial institutions—institutions which continue to exist purely because they have existed in the past, but which were functional a few centuries ago. The supreme office itself is one of these. The King represents the petered-out tail-end of a privilege which in the time of the early Stuarts was almost unlimited. Similar vestiges exist in the United States, where the national spirit during the last century and a half has so completely wiped out colonialism. Such are the Town Meetings of Boston and of New Haven. The earliest form of human marriage was marriage by capture. The man stole the woman and carried her away by force. This form of marriage was in the course of evolution succeeded by marriage through purchase. A man anxious to become a husband could do so by paying to the father a stipulated amount of cash or cattle for his daughter. This second form of marriage finally evolved into marriage arranged by direct and peaceful negotiation between the prospective husband and wife. This is the form most commonly employed at the present time among the more advanced societies of men. But in the ceremonies which surround the nuptial event among civilised peoples survive vestiges of many of the facts associated with aboriginal marriages. A marriage in high life is a sort of epitome of the evolution of the institution. The coyness and hesitancy of the woman in accepting the offers of her proposed spouse are the lineal descendants of the original reluctance of her savage sisters. The wedding-ring is the old token accepted by the woman when she gave her pledge of bondage. The coming of the groom with his aids to the marriage is a figurative marauding expedition. The honeymoon is the abduction. And the charivari and missile-throwing indulged in by friends and relatives on the departure of the wedded twain is a good-humoured counterfeit of the armed protest made by relatives of old when a bride-snatcher came among them.[5]
The vestiges found everywhere in the mental and social phenomena of man and other animals have arisen as necessary facts in the process of mental evolution. They are the vermiform appendices of the mind.
8. One of the strongest reasons for a belief in the physical evolution of animal species is that furnished by individual evolution. Each individual animal recapitulates in a wonderful manner the phylogenesis of its species. Now, it is extremely significant that a similar parallel exists in the case of mental evolution. Each individual mind ascends through a series of mental faculties which epitomises in a remarkable manner the psychogenesis of the animal kingdom.
The human child is not born with a full-grown mind any more than with a full-grown body. It grows. It exfoliates. It ripens with the years. It begins in infancy at the zero-point, and in manhood or womanhood may blaze with genius and philanthropy.