1991 in philosophy

1900（英语：1900 in philosophy） 1901（英语：1901 in philosophy） 1902（英语：1902 in philosophy） 1903（英语：1903 in philosophy） 1904（英语：1904 in philosophy） 1905（英语：1905 in philosophy）

978-0-691-00067-1 Durant, Will, Story of Philosophy: The Lives and Opinions of the World's Greatest Philosophers, Pocket, 1991, ISBN 978-0-671-73916-4 Harrison-Barbet

African Philosophy: The Essential Readings (1991: Paragon House) ISBN 1-55778-309-8 Placide Tempels, La philosophie bantoue (Bantu Philosophy), Elisabethville

(1996), pp. 91–116. 2003. "Reply to Loar". In Hahn and Ramberg (1991). 2003. "Perceptual Entitlement". Philosophy and Phenomenological Research, Vol. 67,

Frege's philosophy of arithmetic and logic. Michael Dummett, 1973. Frege: Philosophy of Language. Harvard University Press. Michael Dummett, 1991. Frege: