Rosa Luxemburg was a revolutionary socialist, economist, and anti-war activist championing democratic reform in early 20th-century Germany.
Erich Fromm was a German-American social psychologist and philosopher who significantly impacted the fields of humanistic psychology and psychoanalysis, advocating for individual freedom and societal change.
Leo Lowenthal was a German-American sociologist and critical theorist who significantly contributed to the study of mass culture and its effects on society.
Max Horkheimer was a German philosopher and sociologist who co-founded the influential Frankfurt School, a critical theory institution that analyzed society and culture through a Marxist lens.