Wallace D. Wattles (2015). “The Science of Being Great: Personal Self-Help Book of Wallace D. Wattles (Unabridged): From one of The New Thought pioneers, author of The Science of Getting Rich, The Science of Being Well, How to Get What You Want, Hellfire Harrison, How to Promote Yourself and A New Christ”, p.4, e-artnow
"The Closing of the American Mind: How higher education has failed democracy and impoverished the souls of today's students". Book by Allan Bloom, 1987.