To this tendency Darwin gave the name "natural selection"; but this term literally implies a deliberate choice by some superhuman power. Herbert Spencer proposed the phrase, "survival of the fittest"; but it must be remembered that the fitness is not necessarily that of greater moral worth.
There may be merely such a superiority in strength and cunning as enables savages to devour a missionary. Spencer says that "the expression, 'survival of the fittest,'" merely means "the leaving alive of those which are best able to utilise surrounding aids to life, and best able to combat or avoid surrounding dangers." Weeds are fitter than flowers for natural growth; and Joan of Arc proved unfit to survive in the contest against wicked men.
This discovery of Darwin's made it his duty to avow a view which was so unpopular that he felt as if he were about "confessing a murder." He was making "a big book" out of the facts he had collected, when a manuscript statement of conclusions like his own was sent him by Wallace, who had discovered independently the great fact of the survival of the fittest. Darwin wished at first to resign all claim to originality; but his friends insisted on his taking a share of the honour of the discovery. Accordingly an essay, which he had written in 1844, was read in company with that sent him by Wallace before the Linnæan Society, in London, on July 1, 1858. The importance of the new view was so well understood that the entire first edition, amounting to 1250 copies, of Darwin's Origin of Species, which book he wrote soon after, was sold on the day of publication, November 24, 1859. Other editions followed rapidly, with translations into many languages. No book of the century has been more revolutionary.
II. Theologians still insisted on the supernatural creation of each species of plant or animal, and especially of the human race, in its final form. The inference that man had been developed by natural processes out of some lower animal, was easily drawn from the Origin of Species, though not expressly stated therein; and there was great alarm among the clergy. An Anglican bishop, who was nicknamed "Soapy Sam" on account of his subserviency to public opinion, declared in a leading quarterly that Darwin held views "absolutely incompatible" with the Bible, and tending to "banish God from nature." Other prominent Episcopalians called the new book "an attempt to dethrone God," and propagate infidelity. Cardinal Manning denounced the "brutal philosophy" which taught that "There is no God, and the ape is our Adam." Both Catholics and Protestants started anti-Darwinian societies in London, and, in 1863, Huxley saw "the whole artillery of the pulpit brought upon the doctrine of evolution and its supporters." The example of England was followed promptly by France and Germany. America was distracted by civil war; and her men of science were so few and timid that the denunciations of Darwinism which were prompted by the theological and metaphysical prejudices of Agassiz were generally accepted as final decisions. The position of the Unitarians and Transcendentalists may be judged from the fact that, during a period of nearly three years after the publication of the Origin of Species, nothing was said about Darwinism in the extremely liberal divinity school where I was then a student. Evolutionism had to look for advocates in America to Spiritualists like Denton or unbelievers like Underwood at that period.
Clerical opposition increased the general unwillingness of scientific men to snatch up new views. As early as 1863, however, Darwin received the support of the famous geologist, Lyell, as well as of a younger naturalist destined to achieve even more brilliant success. Huxley has distinguished himself in arguments against the scientific value of the Bible. Among his other exploits was a demonstration that a chain, in which no link is missing, connects the horse with a small, extinct quadruped possessed of comparatively few equine peculiarities. In this case, transformation of species is an undeniable fact. Other young naturalists in England, as well as in Germany, gradually became willing to push the new view to its last results; and Darwin was encouraged to publish, in 1871, his elaborate account of the origin of our race, entitled The Descent of Man. The wrath of the churches blazed forth once more; and Gladstone entered the arena. Englishmen ventured no longer to say much about the differences between Moses and Darwin; for the obvious retort would have been, "So much the worse for Moses." A German Lutheran, however, bade his congregation choose between Christ and Darwin; and the infallibility of Moses was asserted so zealously by a Parisian Catholic as to win formal thanks from the Pope.
America was now wide awake; irreligious tendencies were assigned to evolutionism by the president of Yale, as well as by some Princeton professors; and one of these latter warned believers in the development of man that they would be punished as infidels after death. The verdict of men of science has at last been pronounced so plainly as to be accepted by thoroughly educated people in the Northern States; but the Southerners are more bigoted. Even so late as 1894, a professor of biology at the University of Texas was dismissed, in violation of contract, for teaching evolutionism. A similar offence had been found sufficient, ten years before, by the Presbyterians of South Carolina, for driving a devout member of their own sect from his chair in a theological seminary. That popular writer on geology, Winchell, was requested in 1878 by a Methodist bishop to resign a professorship at Nashville, Tennessee, where he had expressed doubt of the descent of all men from Adam. The geologist refused to resign, and the chair was suppressed.
Voltaire's chief grievance was the intolerance of Christianity. Paine and Bradlaugh complained that there was much immorality in the Old Testament. The most damaging of recent attacks have been made in the name of science. Genesis and geology had been found irreconcilable before the appearance of Darwinism; but the new system widened the breach. The most serious offence to the theologian, however, was that he could not longer point without danger of contradiction to beneficial peculiarities in the structure of plants and animals, as marks of the divine hand. The old argument about design was met by a demonstration that such peculiarities were apt to arise spontaneously, and become permanent under the pressure of the struggle for existence. The theologian has had to retreat to the position that Darwinism has not accounted for the soul, the intellect, and especially the intuitions.
III. Whether Darwin succeeded or not in this part of his work is not so important as the fact that, several years before he announced his great discovery, an elaborate account of the process by which the powers of thought and feeling have been developed gradually out of the lowest forms of consciousness was given by Herbert Spencer. The first edition of his Principles of Psychology, published in 1855, carried the explanation so far as to show the real origin and value of the intuitions. Their importance had been almost ignored by thinkers who relied entirely on individual experience, and greatly overrated by the Transcendentalists; but neither set of philosophers could explain these mysterious ideas. The infallibility of conscience is not to be reconciled with such facts as that Paul thought it his duty to persecute the Christians, or that Garrison, Sumner, John Brown, and Stonewall Jackson were among the most conscientious men of the century. The ancient Greeks agreed in recognising justice, but not benevolence, among the cardinal virtues; precisely the opposite error was made by Kant and Miss Cobbe; and a tabular view of all the lists of fundamental intuitions which have been made out by noted metaphysicians might be mistaken for a relic from the Tower of Babel. Emerson's religious instincts were not so much impressed as Parker's with the personality of God and immortality; but the difference seems almost insignificant when we remember what ideas of theology arose spontaneously in New Zealand. How widely the intuition of beauty varies may be judged from the inability of aesthetic Chinamen to admire the white teeth and rosy cheeks of an English belle. Intuition is plainly not an infallible oracle; but is it merely a misleading prejudice?
The puzzle was solved when Spencer showed that intuition is a result of the experience of the race. Courage, for instance, was so important for the survival of a primitive tribe in the struggle against its neighbours, that every man found his comfort and reputation depend mainly on his prowess. If he fought desperately he gained wealth, honour, and plenty of wives; but cowards were maltreated by other men and scorned even by the women. The bravest man left the largest number of offspring; and every boy was told so early and earnestly to be courageous as to develop a pugnacious instinct, which has come down to the present day in much greater strength than is needed for the ordinary demands of civilised life. We love war too much, because our ancestors were in danger of not loving it enough for their own safety. As courage ceased to be the one all-important excellence, industry, fidelity, and honesty were found so useful as to be encouraged with a care which has done much to mould conscience into its present shape. Other virtues were inculcated in the same way. The welfare of the family was found to depend largely on the fidelity of wife to husband; and the result was that chastity has held a much higher place in the feminine than in the masculine conscience. So our religious instincts owe much of their strength to the zeal with which our ancestors sought to avert the divine wrath. Thus we have ideas which were originally only vague inferences from primitive experience, but which have gradually gained such strength and definiteness, that they have much more power than if we had thought them out unaided by the past. Spencer himself says, "There have been, and still are, developing in the race certain fundamental moral intuitions" which "are the results of accumulated experiences of utility, gradually organised and inherited," but "have come to be quite independent of conscious experience." They "have no apparent basis in the individual experiences of utility"; and thus conscience has acquired its characteristic disinterestedness.
When we feel this inner prompting to a brave or honest action which must be done promptly or left undone, it is our duty to act without hesitation or regard to our own interest. We are serving our race in the way which its experience has taught. Suppose, however, that there is time enough for deliberation, and that we see a possibility of harm to our neighbours, our family, or even to our own highest welfare. In this case, we ought to compare the good and evil results carefully. We should also do well to consider what was the decision of the consciences of the best and wisest men under similar circumstances. If we neglect these precautions, we may be in danger of following not conscience but passion. There is also a possibility that conscience may embody only such primitive ideas of duty as have since been found incorrect. This has often been the case with persecutors and monarchists.