Inherit we must to some degree; and whatever comes to us by that method must belong to the parent before he is a parent. Traits acquired after parentage are certainly not transmissible, whatever may be the case before. Our inherited constitution, temper, character, tendency, is like an entailed estate. It is in the family, belongs to the family in succession, not to the individual. It is "owned" by the individual in usufruct, but cannot be sold, given away, or otherwise alienated. It must be handed on to the next heir, somewhat better or worse, perhaps, for the current ownership. When the new heir takes possession of his estate, he confers with the steward, and becomes thoroughly acquainted with his holdings. Here are the assets, – this much in permanent capital, this much in income, which he may use as he will. It would be possible for him to overspend that income, to cut down the timber and sell it, to incur debts, impoverishing the next heir. Perhaps this has been done; and he finds himself with neglected lands, buildings in disrepair, restricted resources, and heavy debts. In such case the duty of the heir is to live carefully, avoiding every extravagance, and devote all he can save to clearing off the encumbrances on the estate, thus handing it on to the next heir in better shape than he received it. If this is not done, if one generation after another of inheritors draws relentlessly on the burdened estate and adds to its encumbrances, there comes a time when the heavy mortgages are foreclosed, and that estate is lost.

So with the human constitution. We inherit such and such powers and faculties; such and such weaknesses, faults, tendencies to disease. Our income is the available strength we have to spare without drawing on our capital. Perhaps our ancestors have overdrawn already, wasting their nerve force, injuring their organisms, handing down to us an impoverished physique, with scarce income enough for running expenses, yet needing a large sinking fund for repairs.

In this case it is our plain duty to live "within our means" in nerve force, however limited, and to devote all we can spare to building up the constitution, that we may transmit it in an improved condition to the next heir. If we do not do this, if successive generations overdraw their strength, neglect necessary rest and recreation, increase their weaknesses and diseases, then there comes a time when the inexorable creditor called Nature forecloses the mortgage, and that family is extinct. The heir of the entailed estate in lands and houses has an advantage over the heir of blood and brain. He does not transmit his property until he dies. He has a lifetime to make the needed improvements. But the inheritor of poor eyesight, weak lungs, and a bad temper has a shorter period for repairs. If a woman, she is likely to become a mother by the time she is twenty-five, – perhaps sooner; the man, a father by thirty.

Taking the very early marriages of the poor into consideration (and they are a heavy majority of the population), we may take twenty-five as the average beginning of parenthood. Of course there is still room for improvement before the later children appear; but the running expenses increase so heavily that there is but a small margin to be given to repairs. The amount of nerve force hitherto set aside to control the irritable temper will now be drawn upon by many new demands: the time given to special exercises for the good of the lungs will now be otherwise used. However good the intentions afterward, the best period for self-improvement is before the children come. This reduces the time in which to develope humanity's inheritance to twenty-five years. Twenty-five years is not much at best; and that time is further limited, as far as individual responsibility goes, by subtracting the period of childhood. The first, say, fifteen years of our lives are comparatively irresponsible. We have not the judgment or the self-control to meddle with our own lives to any advantage; nor is it desirable that we should. Unconscious growth is best; and the desired improvement during this period should be made by the skilful educator without the child's knowledge. But at about fifteen the individual comes to a keen new consciousness of personal responsibility.

That fresh, unwarped sense of human honour, the race-enthusiasm of the young; and the fund of strength they bear with them; together with the very light expenses of this period, all the heavy drains of life being met by the parent, – these conditions make that short ten years the most important decade of a lifetime.

It is no wonder that we worship youth. On it depends more than on the most care-burdened age. It is one of the many follies of our blundering progression that we have for so long supposed that the value of this period lay merely in its enjoyableness. With fresh sensations and new strength, with care, labour, and pain largely kept away, youth naturally enjoys more heartily than age, and has less to suffer; but these are only incidental conditions. Every period has its advantage and accompanying responsibilities. This blessed time of youth is not ours to riot through in cheerful disregard of human duty. The biological advantage of a longer period of immaturity is in its cumulative value to the race, the older parent having more development to transmit.

The human animal becomes adult comparatively early, – that is, becomes capable of reproducing the species; and in states of low social grade he promptly sets about it.

But the human being is not only an individual animal: he is a social constituent. He may be early ready to replace himself by another man as good, but he is not yet able to improve upon the past and give the world a man much better. He is not yet developed as a member of society, – trained in those special lines which make him not only a healthier, stronger, rounder individual, but a more highly efficient member of society. Our people to-day are not only larger and longer-lived than earlier races, but they are capable of social relations immeasurably higher than those open to a never-so-healthy savage.

The savage as an individual animal may be equal – in some ways superior – to the modern man; but, as a social constituent, he is like a grain of sand in a heap compared to some exquisitely fitted part of an intricate machine, – a living machine, an organism. In this social relation man may grow and develope all his life; and that is why civilisation, socialisation, brings us useful and honourable age, while savagery knocks its old folk on the head.

But while the social structure grows in beauty, refinement, and power, and eighty years may be spent in its glorious service, that service must be given by individuals. Unless these individuals improve from age to age, showing a finer, subtler, stronger brain and unimpaired physique, there can be no genuine or enduring social improvement. We have seen repeatedly in history a social status lodged in comparatively few individuals, a narrow fragile upper-class civilisation; and we have seen it always fall, – fall to the level of its main constituents, the mass of the people.

One per cent. of sane men in a society of lunatics would make but a foolish state; one per cent. of good men in a society of criminals would make a low grade of virtue; one per cent. of rich men in a society of poor peasants does not make a rich community. A society is composed of the people who compose it, strange to say, – all of them; and, as they are, it is. The people must be steadily made better if the world is to move. The way to make people better is to have them born better. The way to have them born better is to make all possible improvement in the individual before parentage. That is why youth is holy and august: it is the fountain of human progress. Not only that "the child is father to the man," but the child is father to the state – and mother.

The first fifteen years of a child's life should be treated with a view to developing the power of "judgment" and "will," that he may be able to spend his precious ten in making the best possible growth. A boy of fifteen is quite old enough to understand the main principles of right living, and to follow them. A girl of fifteen is quite old enough to see the splendid possibilities that lie before her, both in her individual service to society and the almost limitless power of motherhood. It is not youth which makes our boys and girls so foolish in their behaviour. It is the kind of training we give the little child, keeping back the most valuable faculties of the brain instead of helping them to grow. A boy cast out upon the street to work soon manifests both the abilities and vices of an older person. A girl reared in a frivolous and artificial society becomes a practising coquette while yet a child. These conditions are bad, and we do not wish to parallel them by producing a morbidly self-conscious and prematurely aged set of youngsters. But, if the child has been trained in reason and self-control, – not forced, but allowed to grow in the natural use of these qualities, – he will be used to exercising them when he reaches the freer period of youth, and not find it so difficult to be wise. It is natural for a child to reason, and the power grows with encouragement and use. It is natural for a child to delight in the exercise of his own will upon himself in learning to "do things."

The facility and pleasure and strong self-control shown by a child in playing some arbitrary game prove that it is quite natural for him to govern his acts to a desired end, and enjoy it.

To a desired end, however. We have not yet succeeded in enlisting the child's desires to help his efforts. We rather convince him that being good is tedious and unprofitable, often poignantly disagreeable; and, when he passes childhood, he is hampered with this unfortunate misbelief of our instilling.

But, with a healthy brain and will, a youth of fifteen, with the knowledge easily available at that age, should be not only able and willing, but gloriously eager for personal development. It is an age of soaring ambition; and that ambition, directed in lines of real improvement, is one of Nature's loveliest and strongest forces to lift mankind.

There is a splendid wealth of aspiration in youth, a pure and haughty desire for the very highest, which ought to be playing into the current of our racial life and lifting it higher and higher with each new generation.

The love of emulation, too, so hurtful in the cheap, false forms it so often takes, is a beautiful force when turned to self-improvement. We underrate the power of good intention of our young people. We check and irritate them all through childhood, confusing and depressing the upward tendencies; and then wag our aged heads pityingly over "the follies of youth."

There is wisdom in youth, and power, if we would but let it grow. A simple unconscious childhood, shooting upward fast and strong along lines of rational improving growth, would give to the opening consciousness of youth a healthy background of orderly achievement, and a glorious foreground, – the limitless front of human progress. Such young people, easily appreciating what could be done for themselves and the world by right living, would pour their rich enthusiasm and unstrained powers into real human growing, – the growing that can be done so well in that short, wonderful ten years, – that must be done then, if the race is to be born better. Three or four generations of such growth would do more for man's improvement than our present methods of humaniculture accomplish in as many centuries.