W. Clement StoneIn 1952, W. Clement Stone and Napoleon Hill joined forces and philosophies. Stone added his Positive Mental Attitude (PMA) concept to Hill’s principles, resulting in the classic book, Success Through a Positive Mental Attitude. The two men spet the next 10 years writing and lecturing about the story of success through PMA. Their formula was to become the foundation for virtually all modern motivational writing. Read More Read Less
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