At the end of Escape from Freedom Fromm summarizes his new formulations: “We believe that man is primarily a social being, and not, as Freud assumes, primarily self-sufficient and only secondarily in need of others in order to satisfy his instinctual needs. In this sense, we believe that individual psychology is fundamentally social psychology or, in Sullivan’s terms, the psychology of interpersonal relationships; the key problem of psychology is that of the particular kind of relatedness of the individual toward the world, not that of satisfaction or frustration of single instinctual desires.“
The Sane Society, develops further the themes of Escape from Freedom and Man for Himself. Written from the viewpoint of a humanistic ethic, the book points to the socioeconomic reasons that prevent the realization of the human project. His analysis of the modern capitalist and bureaucratic social structure lays bare the universal phenomenon of alienation that can be overcome only if economic, political, and cultural conditions are fundamentally changed in the direction of a democratic and humanist socialism.