Matches in DBpedia 2016-04 for { ?s ?p "Positive mental attitude is a concept first developed and introduced in 1937 by Napoleon Hill in the book Think and Grow Rich. The book never actually uses the term, but develops the importance of positive thinking as a principle to success. He, along with W."@en }
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- Positive_mental_attitude comment "Positive mental attitude is a concept first developed and introduced in 1937 by Napoleon Hill in the book Think and Grow Rich. The book never actually uses the term, but develops the importance of positive thinking as a principle to success. He, along with W.".
- Q1969752 comment "Positive mental attitude is a concept first developed and introduced in 1937 by Napoleon Hill in the book Think and Grow Rich. The book never actually uses the term, but develops the importance of positive thinking as a principle to success. He, along with W.".