By Sprigge, T.L.S.
By Ayer, A.
By Epstein, Isidore
By Guillaume, Alfred
By Mackie, J.L.
By Hinnells, John
By MacQuarrie, John
By H. R. Ellis Davidson
By Hodges, Wilfred, Wilfrid
By O'Hear, Anthony, Honderich, Ted
By Hampshire, Stuart
By Heilbroner, Robert L.
By Hamlyn, D.
By Chadwick, Henry
By De Bono, Edward
By Zakaria, Rafiq, Zakaria, Rafiq
By E. P. Sanders
By Ware, Timothy
By Gjertsen, D., Gjertsen, Derek
By Buchanan, Scott
By Ruthven, Malise
By Goldberg, David, Rayner, John
By Searle, John
By Paul Davies
By Dennett, Daniel C.
By Porter, Roy
By Kenny, Anthony
By Murdoch, Iris
By Dawkins, Richard
By Camus, Albert