P931:1, 84:0.1 Material necessity founded marriage, sex hunger embellished it, religion sanctioned and exalted it, the state demanded and regulated it, while in later times evolving love is beginning to justify and glorify marriage as the ancestor and creator of civilization's most useful and sublime institution, the home. And home building should be the center and essence of all educational effort.
P931:2, 84:0.2 Mating is purely an act of self-perpetuation associated with varying degrees of self-gratification; marriage, home building, is largely a matter of self-maintenance, and it implies the evolution of society. Society itself is the aggregated structure of family units. Individuals are very temporary as planetary factors -- only families are continuing agencies in social evolution. The family is the channel through which the river of culture and knowledge flows from one generation to another.
P931:3, 84:0.3 The home is basically a sociologic institution. Marriage grew out of co-operation in self-maintenance and partnership in self-perpetuation, the element of self-gratification being largely incidental. Nevertheless, the home does embrace all three of the essential functions of human existence, while life propagation makes it the fundamental human institution, and sex sets it off from all other social activities.