Columbia subject headings:
Negativity (Philosophy)
Philosophy, Modern--19th century.
Philosophy, Modern--20th century.
Religious thought--19th century.
Religious thought--20th century.
Harvard subject headings:
Philosophy, Modern--20th century.
Princeton subject headings:
Negativity (Philosophy)
Philosophy, Modern--19th century.
Philosophy, Modern--20th century.
Religious thought--19th century.
Religious thought--20th century.