Classical metaphysics and ontology (cosmology), Anthropological psychology (specific to Man) (Philosophical anthropology, Plessner, Gehlen, Cassirer, Heidegger), Classical philosophy (particularly Plato and Aristotle), Critical theory, Critique of metaphysics, Current philosophy of history and contemporary diagnostics, German idealism, Hermeneutics, Modern philosophy of history, Phenomenology
Classical metaphysics and ontology (cosmology), Analytical linguistic philosophy from Frege to today, Climate and society, Environmental ethics, Ethical and moral forms of reasoning, German idealism, Modern moral philosophy and moral criticism, Modern philosophy of consciousness, Philosophers, Philosophical aesthetics, The issue of free will, The issue of the soul and the body