Columbia subject headings:
Pessimism--History--19th century.
Philosophy, German--19th century.
Philosophy, Indic.
Harvard subject headings:
Pessimism--History--19th century.
Philosophy, German--19th century.
Philosophy, Indic.
Princeton subject headings:
Pessimism--History--19th century.
Philosophy, German--19th century.
Philosophy, Indic.