By McKeown, J. C.
By Harvey, Gordon
By Plato, J. M. Cooper
By David Northrup
By Nelson Goodman
By Aristotle, G. M. A. Grube
By Augustine, Ernest L. Fortin, Douglas Kries
By Plato, G. M. A. Grube, John M. Cooper
By Elizabeth Jackson, Tyron Goldschmidt, Dustin Crummett, Rebecca Chan
By Jean-Jacques Rousseau, Donald Cress
By Cunningham, Suzanne
By Berkeley, George, Adams, Robert M.
By Empiricus, Sextus, Etheridge, Sanford G., Hallie, Philip P.
By Perry, John
By Aquinas, Thomas, Brown, Stephen F.
By Bernasconi, Robert, Lott, Tommy L.
By Rosenthal, David M.
By Sprague, Rosamond Kent
By Ariew, Roger, Watkins, Eric
By Kulstad, Mark
By Robinson, Timothy A.
By Plato, Grube, G. M. A.
By Bayle, Pierre, Popkin, Richard H., Brush, Craig, R. H., C.
By Mill, John Stuart
By Hume, David, Popkin, Richard H.
By Ammerman, Robert
By Harvey, Michael
By Kant, Immanuel, Ellington, J.W.
By Hartnack PhD, Justus
By Kant, Immanuel, Watkins, Eric, Pluhar, Werner S.