b, c, d, e—m, n, c, d, e—m, n, o, d, e—m, n, o, p, e—m, n, o, p, q. In this case each stage is differentiated from the contiguous stage by only one member, and at each moment it shares the same chief elements with its neighboring moments.
This continuity in change of the individuals who are the vehicles of the group unity is most immediately and thoroughly visible when it rests upon procreation. The same form is found, however, in cases where this physical agency is excluded, as, for example, within the Catholic clerus. Here the continuity is secured by provision that enough persons always remain in office to initiate the neophytes. This is an extremely important sociological fact. It makes bureaucracies so tenacious, and causes their character and spirit to endure in spite of all shifting of individuals. The physiological basis of self-maintenance here gives place to a psychological one. To speak exactly, the preservation of group identity in this case depends, of course, upon the amount of invariability in the vehicles of this unity, but, at all events, the whole body of members belonging in the group at any given moment only separate from the group after they have been associated with their successors long enough to assimilate the latter fully to themselves, i.e., to the spirit, the form, the tendency of the group. The immortality of the group depends upon the fact that the change is sufficiently slow and gradual.
The fact referred to by the phrase “immortality of the group” is of the greatest importance. The preservation of the identical selfhood of the group through a practically unlimited period gives to the group a significance which, ceteris paribus, is far superior to that of the individual. The life of the individual, with its purposes, its valuations, its force, is destined to terminate within a limited time, and to a certain extent each individual must start at the beginning. Since the life of the group has no such a priori fixed time limit, and its forms are really arranged as though they were to last forever, the group accomplishes a summation of the achievements, powers, experiences, through which it makes itself far superior to the fragmentary individual lives. Since the early Middle Ages this has been the
