Columbia subject headings:
Aesthetics, Modern--19th century.
Ethics--19th century.
Harvard subject headings:
Aesthetics in literature.
Aesthetics, Modern--18th century.
Art--Philosophy
Ethics in literature.
Ethics, Modern--18th century.
German literature--18th century--History and criticism
Literature--Philosophy
Philosophy, Modern--18th century.
Religion and ethics.
Princeton subject headings:
Aesthetics--19th century.
Ethics--Philosophy--19th century.