Columbia subject headings:
Civilization, Modern--21st century.
Klages, Ludwig, 1872-1956--Criticism and interpretation.
Mind and body.
Philosophy.
Spengler, Oswald, 1880-1936--Criticism and interpretation.
Spirit.
Harvard subject headings:
Civil society--Philosophy.
Civilization--21st century.
Globalization--Social aspects--Philosophy.
Klages, Ludwig, 1872-1956--Criticism and interpretation.
Klages, Ludwig, 1872-1956.
Life
Mind and body
Philosophy
Philosophy of mind
Spengler, Oswald, 1880-1936--Criticism and interpretation.
Spengler, Oswald, 1880-1936.
Spirit
Princeton subject headings:
Civilization--21st century.
Klages, Ludwig, 1872-1956--Criticism and interpretation.
Mind and body.
Philosophy.
Spengler, Oswald, 1880-1936--Criticism and interpretation.
Spirit.