The application of psychoanalysis to sociology must definitely guard against the mistake of wanting to give psychoanalytic answers where economic, technical, or political facts provide the real and sufficient explanation of sociological questions. Psychoanalyse und Soziologie (1929)
Psychoanalysis, which interprets the human being as a socialized being, and the psychic apparatus as essentially developed and determined through the relationship of the individual to society, must consider it a duty to participate in the investigation of sociological problems to the extent the human being or his/her psyche plays any part at all. Psychoanalyse und Soziologie (1929)