1. See the back cover of B. Russell (1961 rpt. 1996) History of Western Philosophy (London: Routledge).
2. Russell, Bertrand (1872–1970)’, in Ted Honderich (ed.) (1995), The Oxford Companion to Philosophy (Oxford: Oxford University Press), p. 782.
3. See a new translation by Riad Kocache (1982), The Journey of the Soul: The Story of Hai bin Yaqzan As Told by Abu Bakr Muhammad bin Tufai y (London: The Octagon Press), p. 28.
4. Immanuel Kant, quoted in L. Goldman (1973), The Philosophy of the Enlightenment: The Christian Burgess and the Enlightenment, translated by H. Maas (London: Routledge & Kegan Paul), p.
5. See W. Beck’s translation of Kant: ‘Enlightenment is man’s release from his self-incurred tutelage’, in L.W. Beck (ed.) (1963), On History (Indianapolis: Bobbs-Merrill), p. 3.