E. P. Wigner (1960), “The unreasonable effectiveness of mathematics in the natural sciences. Richard Courant lecture in mathematical sciences delivered at New York University, May 11, 1959,” Communications on Pure and Applied Mathematics. 13: 1–14.
Stephen Hawking and Leonard Mlodinow (2010), The Grand Design. New York: Bantam Books.
Ken Wilber (2000), Integral Psychology: Consciousness, Spirit, Psychology, Therapy. Boston: Shambhala Publications.
Maharishi Mahesh Yogi (1963), The Science of Being and Art of Living. New York: Age of Enlightenment Press.