1. Henri Bergson, Creative Evolution, trans. Arthur Mitchell (Mineola: Dover Publications, 1998).
2. Keith Ansell Pearson, Philosophy and the Adventure of the Virtual: Bergson and the Time of Life (London: Routledge, 2002), 91–3.
3. John Mullarkey, Bergson and Philosophy (Notre Dame: University of Notre Dame Press, 1999), 80–1.