The Thought Highway to Wealth is a collection of three powerful book on Attracting Riches Through Thought. The Science of Getting Rich is based upon what Wallace D. Wattles called "the Certain Way of Thinking" what is today known as Positive Thinking. Wattles and The Science of Getting Rich produced Napoleon Hill and his book Think and Grow Rich. As a Man Thinketh By James Allen reminds us that our thoughts control our actions and mold who we are as a person. Good and generous thoughts bring about good and generous actions. Thoughts of greed and covetousness show themselves in selfish and paranoid behavior. Feed your mind on healthful thoughts and happiness and success will follow. "Eat thou not the bread of him that hath an evil eye, neither desire thou his dainty meats: For as he thinketh in his heart, so is he: Eat and drink, saith he to thee; but his heart is not with thee. The morsel which thou hast eaten shalt thou vomit up, and lose thy sweet words." In Thoughts Are Things Prentice Mulford explains we have, in effect, two minds: the mind of the body and the mind of the spirit. The mind of the body is limited and fights change. It thinks things must always be the way they've always been. The mind of the spirit trusts in the Supreme Power which made all things and knows that anything is possible if you believe.