[12] Westermarck, History of Human Marriage, p. 11 sq.
[13] Ibid. p. 12 sqq.
[14] Westermarck, History of Human Marriage, p. 14 sqq.
The stimuli to which the paternal instinct responds are apparently derived from the same circumstances as those which call into activity the maternal instinct, that is, the helplessness and the nearness of the offspring. Wherever this instinct exists, the father is near his young from the beginning, living together with the mother. And here again the sentimental response is in all probability the result of a process of natural selection, which has preserved a mental disposition necessary for the existence of the species. Among birds paternal care is indispensable. Equal and continual warmth is the first requirement for the development of the embryo and the preservation of the young ones; and for this the mother almost always wants the assistance of the father, who provides her with necessaries, and sometimes relieves her of the brooding. Among mammals, again, whilst the young at their tenderest age can never do without the mother, the father’s aid is generally not required. That the Primates form an exception to this rule is probably due to the small number of young, the female bringing forth but one at a time, and besides, among the highest apes and in man, to the long period of infancy.[15] If this is true we may assume that the paternal instinct occurred in primitive man, as it occurs, more or less strongly developed, among the anthropoid apes and among existing savages.
[15] See ibid. p. 20 sqq. Fiske, Outlines of Cosmic Philosophy, ii. 342 sq.
By origin closely allied to the paternal feeling is the attachment between individuals of different sex, which induces male and female to remain with one another beyond the mere act of propagation till after the birth of the offspring. It is obvious that, where the generative power is restricted to a certain season—a peculiarity which primitive man seems to have shared with other mammals[16]—it cannot be the sexual instinct that causes the prolonged union of the sexes, nor can I conceive any other egoistic motive that could account for this habit. Considering that the union lasts till after the birth of the offspring and that it is accompanied with parental care, I conclude that it is for the benefit of the young that male and female continue to live together. The tie which joins them seems therefore, like parental affection, to be an instinct developed through natural selection. The tendency to feel some attachment to a being which has been the cause of pleasure—in this case sexual pleasure—is undoubtedly at the bottom of this instinct. Such a feeling may originally have induced the sexes to remain united and the male to protect the female even after the sexual desire was gratified; and if procuring great advantage to the species in the struggle for existence, conjugal attachment would naturally have developed into a specific characteristic.
[16] Westermarck, op. cit. ch. ii.
We have reason to believe that the germ of this sentiment occurred already in our earliest human ancestors, that marriage, in the natural history sense of the term, is a habit transmitted to man from some ape-like progenitor.[17] In the course of evolution conjugal affection has increased both in intensity and complexity; but advancement in civilisation has not at every step been favourable to its development. When restricted to men only, a higher culture on the contrary tends to alienate husband and wife, as is the case in Eastern countries and as was the case in ancient Greece. Another fact leading to conjugal apathy is the custom which compels the women before marriage to live strictly apart from the men. In China it often happens that the parties have not even seen each other till the wedding day;[18] and in Greece Plato urged in vain that young men and women should be more frequently permitted to meet one another, so that there should be less enmity and indifference in the married life.[19] Conjugal love is both a cause and an effect of monogamy; but, as we shall see subsequently, the course of civilisation does not involve a steady progress towards stricter monogamy. The notions about women also influence the emotions felt towards them; and we have noticed that the great religions of the world have generally held them in little regard.[20] In its fully developed form the passion which unites the sexes is perhaps the most compound of all human feelings. Mr. Spencer thus sums up the masterly analysis he has given of it:—“Round the physical feeling forming the nucleus of the whole, are gathered the feelings produced by personal beauty, that constituting simple attachment, those of reverence, of love, of approbation, of self-esteem, of property, of love of freedom, of sympathy. These, all greatly exalted, and severally tending to reflect their excitements on one another, unite to form the mental state we call love.”[21]
[17] Ibid. op. cit. chs. i., iii.
[18] Katscher, Bilder aus dem chinesischen Leben, pp. 71, 84.