As human beings, our main field of duty lies in promoting social advance. To maintain ourselves and our families is an animal duty we share with the other animals; to maintain each other, and, by so doing to increase our social efficiency, is human duty, first, last, and always. We have always seen the necessity for social groups, religious, political, and other; we have more or less fulfilled our social functions therein; but we have in the main supposed that all this common effort was merely for the greater safety and happiness of homes; and when the interests of the home and those of the state clashed, most of us have put home first.

The first person to learn better was that very earliest of social servants, the soldier. He learned first of all to combine for the common good, and though his plane of service was the lowest of all, mere destruction, the group sentiments involved were of the highest order. The destructive belligerence of the male, and his antecedent centuries of brute combat, made fighting qualities most prominent; but the union and organisation required for successful human warfare called out high social qualities, too. The habit of acting together necessarily develops in the brain the power and desire to act together; the fact that success or failure, life or death, advantage or injury, depends on collective action, necessarily develops the social consciousness. This modification we find in the army everywhere, gradually increasing with race-heredity; and, long since, so far overwhelming the original egoism of the individual animal, that the common soldier habitually sacrifices his life to the public service without hesitation.

The steps in social evolution must always be made in this same natural order, from one stage of development to another, by means of existing qualities. Primitive man had no altruism, he had no honour, his courage was flickering and wholly personal; he had no sense of order and discipline, of self-control and self-sacrifice; but he had a strong inclination to fight, and by means of that one tendency he was led into relations which developed all those other qualities.

It is easy to see that this stage of our social development was diametrically opposed by the home. The interests of the home demanded personal service; the habits of the home bred industry and patience; the influence of the inmates of the home, of the women and children, did not promote martial qualities. So our valorous ancestor promptly left home and went a-fighting, for thousands and thousands of years, while human life was maintained by the women at home.

When men gradually learned to apply their energies to production, instead of destruction; learning in slow, painful, costly ages that wealth was in no way increased by robbing, nor productive strength by slaughter; they were able to apply to their new occupations some of the advantageous qualities gained in the old. Thus industry grew, spread, organised, and the power and riches and wisdom of the world began to develop.

As far back as history can go we find some men producing, even while a large and important caste was still fighting. The warriors sought wealth by plundering other nations, not realising that if the other nations had been all warriors there would have been nothing to plunder. Slowly the wealth-makers overtook the wealth-takers, caught up with them, passed them; and now the greater part of the masculine energy of the world is devoted to productive industry in some form, and the army is recruited from the lowest ranks of life.

In this new field of social service, productive industry, what is the influence of the home? At first it was altogether good. To wean the man from his all too-natural instinct to wander, kill, and rob, the attractions of home life were needed. To centre and localise his pride and power, to make him bend his irregular expansive tendencies to the daily performance of labour, was a difficult task; and here again he had to be led by the force of existing qualities. The woman was the great drawing power here, the ease and comfort of the place, the growing love of family, and these influences slowly overcame the warrior and bound him to the plough.

Thus far the home influence led him up, and, in turn, his military qualities lifted the home industries from the feminine plane to the human. To produce wealth for the home to consume was a better position than that of living by plunder; but we should have small cause to glory in the march of civilisation if that was all we had done.

Just as the fierce and brutal savage, entering into military combination, under no better instincts than self-defence and natural belligerence, yet learned by virtue of that combination new and noble qualities; so the still fierce and brutal soldier, entering into industrial combination under no better instincts than those of sex-attraction and physical wants in increasing degree, yet learned, by virtue of this form of union, new qualities even more valuable to the race.

The life of any society is based on the successful interaction of its members, rather than the number of its families. For instance, in those vast, fat, ancient empires, where a vast population, scattered over wide territory, supported local life in detached families, by individual effort; there was almost no national life, no general sense of unity, no conscious connection of interests. The one tie was taxation; and if some passing conqueror annexed a province, the only change was in the tax-collector, and the people were not injured unless he demanded more than the previous one.