NUMBER AS DETERMINING FORM OF GROUP 7
destroys the former. A disastrous war, which ruins a petty city-state, may regenerate a great state. This occurs not merely from the quite evident external reasons, but because the rela- tion of the reserves of power to the active energies in the two cases is different. Small and gjeatrigetally organized groups usually call out and employ to their full extent the energies avail- able within them ; in greater groups, on the other hand, much more energy, not merely absolutely but also relatively, remains in a latent condition. The demand of the whole does not seize upon every member constantly and completely, and it permits much power to remain unused which then, in extreme cases, may be mobilized and actualized. The decisive thing in this case is, as indicated, the social centripetalism, that is, the ratio in which the energies present in the society are harnessed for its purposes. When it, therefore, occurs that a lower and smaller group allows its members much autonomy and inde- pendence, the latter then often develop energies which are not used socially, and, therefore, in case the appeal to the common interests occurs, they represent a considerable available recourse. This was for a long time the case, for example, with the nobility of the Scotch highlands. Likewise, on the other hand, where dangers, which demand an unused quantity of social energy, are excluded by the circumstances, means of numerical limita- tion, which extend even beyond endogamy, may be quite appropriate. In the highlands of Thibet polyandry prevails and, as even the missionaries recognize, to the advantage of society ; for the soil is there so unfruitful that a rapid increase of the population would produce the greatest misery. To pre- vent this, polyandry is an efficient means. When we hear that among the Bushmen, on account of the sterility of the soil, very often even families must separate, the rule that the families must limit themselves to numbers corresponding with the possibilities of food production appears to be precisely in the interest of their unity, and highly appropriate when this and its social significance are considered. The dangers of the quantitative limitation are provided against by the external conditions of the life of the group, and their consequences for its inner structure.
