Philosopher Quotes
- Charles Fourier 1772 - 1837
- Charles Frankel 1917 - 1979
- Charles Hampden-Turner 1934 -
- Charles Handy 1932 -
- Charles Hartshorne 1897 - 2000
- Charles Kay Ogden 1889 - 1957
- Charles Pierce 1839 - 1914
- Charles Sanders Peirce 1839 - 1914
- Charles West Churchman 1913 - 2004
- Chauncey Wright 1830 - 1875
- Christina Hoff Sommers 1950 -
- Chrysippus 279 - 206
- Chungliang Al Huang 1937 -
- Citium Zeno 334 - 262
- Claude Adrien Helvetius 1715 - 1771
- Colin McGinn 1950 -
- Colin Wilson 1931 - 2013
- Confucius 551 - 479
- Constantin-Francois Chasseboeuf 1757 - 1820
- Corliss Lamont 1902 - 1995
- Cornel West 1953 -
- Dada Vaswani 1918 -
- Dagobert D. Runes 1902 - 1982
- Daisaku Ikeda 1928 -
- Dallas Willard 1935 - 2013
- Daniel Callahan 1930 - 2019
- Daniel Dennett 1942 -
- David Abram 1957 -
- David Benatar 1966 -
- David Castle 1967 -
- David Chalmers 1966 -
- David Hume 1711 - 1776
- David Malet Armstrong 1926 - 2014
- David P. Ellerman 1943 -
- David Papineau 1947 -
- David Roochnik 1951 -
- David Schmidtz 1955 -
- David Spangler 1945 -
- David Sztybel 1967 -
- Dejan Stojanovic 1959 -