Robert Collier (2013). “The Secret of the Ages: The Secret Edition - Open Your Heart to the Real Power and Magic of Living Faith and Let the Heaven Be in You, Go Deep Inside Yourself and Back, Feel the Crazy and Divine Love and Live for Your Dreams”, p.83, Lulu Press, Inc
Wallace D. Wattles (2015). “Wallace D. Wattles Ultimate Collection – 10 Books in One Volume: The Science of Getting Rich, The Science of Being Well, The Science of Being Great, How to Get What You Want and more: From one of the New Thought pioneers, author of Making of the Man Who Can or How to Promote Yourself and New Science of Living and Healing or Health Through New Thought and Fasting”, p.57, e-artnow
Prentice Mulford (2015). “Thoughts Are Things & The God In You - Connect With The Force Within Yourself: How to Find With Your Inner Power - From one of the New Thought pioneers, author of Your Forces and How to Use Them, Gift of Spirit & The Gift of Understanding”, p.120, e-artnow
Jack Canfield, D. D. Watkins (2007). “Jack Canfield's Key to Living the Law of Attraction: A Simple Guide to Creating the Life of Your Dreams”, p.139, Health Communications, Inc.