The Science of Being Great (Wallace D. Wattles)
The Science of Being Great: Learn more at Amazon or at Goodreads.
“The author of The Science of Getting Rich brings you The Science of Being Great. Wallace D. Wattles introduced the world to the power of positive thinking. He was a profound influence on Michael Losier and James Arthur Ray. Without Wattles’ science of books there never would have been books such as The Laws of Attraction, The Power of Positive Thinking, and The Secret. Now you can go directly to the source! Here is your guide to increasing personal power and finding greatness and success.”
New Books Playground says: The Science of Being Great is one of the earlier motivational books with great thoughts on developing oneself.