Columbia subject headings:
Courbet, Gustave, 1819-1877--Philosophy.
Courbet, Gustave, 1819-1877--Written works.
Philosophy, Ancient.
Harvard subject headings:
Artists--France--19th century--Biography.
Philosophy--Study and teaching--France--19th century.
Princeton subject headings:
Courbet, Gustave, 1819-1877--Written works.
Philosophy, Ancient.