"Deepak Chopra Talks About Awakening the World and His “Sages and Scientists” Symposium". Interview with Marianne Schnall, www.huffingtonpost.com. August 15, 2013.
Marsden Gibson, Charles Bradlaugh (1889*). “Has Humanity Gained from Unbelief?: Two Nights Debate Between Marsden Gibson and Charles Bradlaugh at Newcastle-on-Tyne”