Thus, at the lowest level, electrons tend to unite and
converge in the atom; atoms
converge by molecularization, crystallization; molecules unite by polymerization; cells unite by conjugation, reproduction, association; nerve ganglions concentrate and localize to form a brain by what might be called a process of cephalization; the higher animal groups form colonies, hives, herds,
societies, etc.; man socializes and forms civilizations as foci of attraction and
organization.