1. Aristotle. (n.d.). Physics Book IV (R. P. Hardie & R. K. Gaye, Trans.). Chapter 11. Retrieved from http://logoslibrary.org/aristotle/physics/411.html.
2. Aristotle. (n.d.). Physics Book IV (R. P. Hardie & R. K. Gaye, Trans.). Chapter 14. Retrieved from http://logoslibrary.org/aristotle/physics/414.html.
3. Time and freewill: An essay on the immediate data of consciousness;Bergson,2001
4. The creative mind: An introduction to metaphysics;Bergson,2007
5. Matter and memory;Bergson,2010