"The position a wife holds towards a concubine is the same as that of a lord to his vassal. The Emperor has twelve imperial concubines. The princes may have eight concubines. Officers of the highest class may have five mistresses. A Samurai may have two handmaids. All below this are ordinary married men." This would suggest that concubinage had long been (with some possible exceptions) an exclusive privilege; and that it should have persisted down to the period of the abolition of the daimiates and of the military class, is sufficiently explained by the militant character of the ancient society.* Though [69] it is untrue that domestic ancestor-worship cannot coexist with polygamy or polygyny (Mr. Spencer's term is the most inclusive), it is at least true that such worship is favoured by the monogamic relation, and tends therefore to establish it,--since monogamy insures to the family succession a stability that no other relation can offer. We may say that, although the old Japanese society was not monogamic, the natural tendency was towards monogamy, as the condition best according with the religion of the family, and with the moral feeling of the masses. [*See especially Herbert Spencer's chapter, "The Family," in Vol. I, Principles of Sociology, section 315.] Once that the domestic ancestor-cult had become universally established, the question of marriage, as a duty of filial pity, could not be judiciously left to the will of the young people themselves. It was a matter to be decided by the family, not by the children; for mutual inclination could not be suffered to interfere with the requirements of the household religion. It was not a question of affection, but of religious duty; and to think otherwise was impious. Affection might and ought to spring up from the relation. But any affection powerful enough to endanger the cohesion of the family would be condemned. A wife might therefore be divorced because her husband had become too much attached to her; an adopted husband might be divorced because of his power to exercise, through affection, too [70] great an influence upon the daughter of the house. Other causes would probably he found for the divorce in either case--but they would not be difficult to find.