By Friedrich Nietzsche, Nietzsche, Friedrich, Smith, Douglas
By Marx, Karl, McLellan, David
By Augustine, St, Green, R. P. H.
By Andrews, Malcolm
By Devlin, Lord
By Collingwood, R. G., Dussen, Jan van der
By Arnold, John H.
By O'Shea, Michael, michael-o-shea
By Simon Blackburn, Simon Blackburn (Professor of Philosophy, Professor of Philosophy, University of Cambridge)
By Evans, Dylan
By Drake, Stillman
By Lovelock, James
By Dawkins, Richard, Richard Dawkins
By John D. Barrow
By Medawar, Peter
By Kaku, Michio, Kaku, M.
By James Lovelock
By Shonfield, Andrew
By Patrick Gardiner, Gardiner, Patrick
By Winch, Donald
By Skidelsky, Robert
By Mary Warnock, Warnock, Mary
By Paul Cartledge
By Terrell Carver, Carver, Terrell
By Smith, John Maynard
By Mackey, James P.
By Rupert Gethin, Gethin, Rupert
By Jonathan Wolff
By Paul Gorner