Napoleon Hill talked about the Transmutation of Sexual Energy in his ground-breaking book Think and Grow Rich. In the book, Hill noted that all men of genius used their sexual energy as fuel for their creativity. He also noted that Love must be included in the sex relationship. Think and Grow Rich was written in 1937 by Napoleon Hill, promoted as a personal development and self-improvement book. Hill writes that he was inspired by a suggestion from business magnate and later-philanthropist Andrew Carnegie. While the book’s title and much of the text concerns increased income, the author insists that the philosophy taught in the book can help people succeed in any line of work, to do and be anything they can imagine.