In the natural sciences, an effective theoretical system characteristically has as its focal center a primary datum from which all the ramifications of the structure extend. Sociology implies the concept of the socius, which is well fitted to play this central, primary binding together social psychology and sociology and providing a basis for systematic research and pedagogy. By utilizing existent theory and research, a logico-heuristic schematism is here proposed, based upon the socius conceived as an individual psychogenetic pattern (p.g.p.), seen in its need phase and its functional phase, and expressed within a given cultural and social milieu through a sociological pattern involving status, role, socialized habit, attitudes, and wishes.