Nature vs. culture
Few thoughtful persons now hold the view that the race can be rapidly improved biologically by the process of educating the individual. Education is cumulative in so far as it builds up a better environment into which other children will be born, but the betterment is not due to the inheritance by the child of the acquired knowledge and skill of the parent. If this question is open to dispute among biologists, it is only as regards a minute increment of improvement. Practically, selection is the only means of improving the innate capacity of any species in any large measure. Many forces were at work in the past to lift man above the brute, and especially to increase the average brain-power of the human race. The weak, the ignorant, the incapable in primitive societies were ruthlessly killed off. The strong, the sagacious, and the enterprising left the largest numbers of descendants.
Decrease of the successful elements
5. Progress will be checked if the native quality of the race declines. Under modern conditions, especially within the last quarter of a century, the successful elements of society are becoming less fertile. Large families were the rule among the capable pioneers of America; now they are rare except in the lower industrial ranks. Democracy and opportunity are favoring this process of increasing the mediocre and reducing the excellent strains of stock. Caste and status kept successful generations of capable men in humble social ranks from which only by chance some remarkable individual could rise. In a democracy, those of marked ability can more easily move into the better-paid callings and professions. This individual good fortune, however, reduces the probability of offspring. In the higher social ranks are more bachelors and old maids than in the lower ranks, and fewer children are born to each marriage. The president of our oldest university has shown that one fourth of the graduates of the last generation have remained single, and that the average number of children of the married graduate is two. That group of men, therefore, has left only three fourths enough descendants to maintain its numbers, and as the population has doubled within the same generation, that class represents only three eighths as large a proportion of the American stock as formerly.
The menace to progress
This sterilization of ability has cumulative results. If society were composed in equal parts of two distinct strains of stock, not intermarrying; if the total population kept intact from one generation to another (say each period of thirty years), but the superior strain contributed only three fourths of its own number, at the end of five generations it would have sunk from one half to a little more than one eighth of the population. A period brief in the life of nations would serve to leave it an almost negligible factor in social life. There can hardly be a doubt that at present our society is on the average increasing far more from the less provident, less enterprising, less intelligent classes. There has not yet been time for many of the cumulative effects of this process to appear. Progress is threatened unless social institutions can be so adjusted as to reverse the present process of multiplying the poorest, and of extinguishing the most capable families.
Sympathy and selfishness in relation to progress
6. If progress is to continue, there must be left a wide field for the ambitions and for the competition of individuals. The results of any given ability are dependent upon the energy with which it is used. The social machinery finds its motive force in the nature of men. In taking economic wants as the starting point of our study, it was not implied that men were entirely selfish. Sympathy widens; economic wants include family, friends, and, in a growing measure, humanity. The happiness of a truly socialized man consists in part in the happiness of his fellows. As social sympathy broadens, the sense of duty becomes a stronger economic force. Men change, but not rapidly, and not always for the better. It is unsafe to overestimate the generosity of men. Individual wants and interests must, so far as can now be seen, continue to be among the stronger forces that move society. Progress is made because to exceptional ability in general is now presented the hope of large rewards.
Status endangering progress
Envy endangering progress