Columbia subject headings:
Aesthetics, German--19th century.
Aesthetics, German--20th century.
Ethics, Modern--19th century.
Ethics, Modern--20th century.
Ethics--Germany.
Germany--Intellectual life--19th century.
Germany--Intellectual life--20th century.
Harvard subject headings:
Aesthetics, German--19th century.
Aesthetics, German--20th century.
Civilization, Modern--20th century
Germany--Intellectual life--19th century.
Germany--Intellectual life--20th century.
Politics and ethics.
Princeton subject headings:
Aesthetics, German--19th century.
Aesthetics, German--20th century.
Ethics, Modern--19th century.
Ethics, Modern--20th century.
Ethics--Germany.
Germany--Intellectual life--19th century.
Germany--Intellectual life--20th century.