the richer-poorest thinking

Think and Grow Rich was written in 1937 by Napoleon Hill.

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.[1] 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