Arthur Schopenhauer
(1788 – 1860)
Henri Bergson
(1859 – 1941)
Soren Kierkegaard
(1813 – 1855)
Karl Jaspers
(1883 – 1969)
Martin Heidegger
(1889 – 1976)
Jean Paul Sartre
(1905 – 1980)
Auguste Comte
(1798 – 1857)
John Stuart Mill
(1806 – 1873)
Ludwig Feuerbach
(1804 – 1872)
Karl Marx
(1818 – 1883)
Charles Sanders Peirce
(1839 – 1914)
William James
(1842 – 1910)
John Dewey
(1859 – 1952)
Friedrich Nietzsche
(1844 – 1900)