Simmel’s teaching spanned philosophy, social psychology, and ethics

Evidence

Simmel lectured on “logic, principles of philosophy, history of philosophy, modern philosophy, Kant, Lotze, Schopenhauer, Darwin, pessimism, ethics, philosophy of religion, philosophy of art, psychology, social psychology, political psychology, and 8 His writings ranged equally far, and he published much. — Georg Simmel, The Sociology of Georg Simmel, 167