1. 1. R. Penrose, The Large, the Small and the Human Mind (Cambridge University Press, First South Asian edn., 1999), p. 53.
2. 2. D. Bohm and B. J. Hiley, The Undivided Universe (Routledge, London 1993).
3. 3. D. Bohm, Wholeness and the Implicate Order (Routledge & Kegan Paul, London 1980).
4. 4. E. Fermi, Nuclear Physics (Midway Reprint, The University of Chicago Press, Chicago 1974), p. 57.
5. 5. W. Pauli, in The Born-Einstein Letters (Macmillan, London 1971), p. 222.