By Langan, Thomas
By G. W. F. Hegel, Michael George, Andrew Vincent, A. V. Miller
By Theodoor Marius van Leeuwen
By Crane, Tim
By Regan, Stephen
By Schor, Naomi
By William Viney
By Marina Warner
By Quentin Meillassoux
By Christopher Watkin
By Plato, W. Hamilton
By Kordela, A. Kiarina
By Critchley, Simon
By Heidegger
By Krell, David Farrell
By Taminiaux, Jacques, Gendre, Michael
By Norris, Christopher
By Žižek, K. Najafi
By Heaton, John, Groves, Judy
By Gilson, Etienne
By Aristotle, Kirwan, Christopher
By Lucas, J. R.
By Raymond Tallis
By Shah, Idries, Idries Shah
By J Bronowski
By Jeff Collins, Howard Selina
By Berofsky, Bernard
By Trigg, Roger
By Carole Zaleski (Lecturer on the Study of Religion, Lecturer on the Study of Religion, Harvard University)
By Neale Donald Walsch