W. Clement Stone

William Clement Stone (May 4, 1902 - September 3, 2002) was an American insurance magnate, the founder of Combined Insurance. Stone was a long-time associate of Napoleon Hill and proponent of what he called "Positive Mental Attitude" (PMA), financing the publication of books and magazines in the vein of Positive Thinking, including Success Unlimited. Politically, Stone maintained close ties to Republican Party and its leadership, notably contributing several million dollars to Nixon's presidential campaigns.