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The benefits of positive thinking have been touted for decades. In the landmark 1952 self-help book The Power of Positive Thinking, author Norman Vincent Peale posited to readers that if you change your thoughts, you can change the world. “When you expect the best, you release a magnetic force in your mind which by a law of attraction tends to bring the best to you,” Peale wrote, adding that readers should believe in themselves and have faith in their abilities. “Without a humble but reasonable confidence in your own powers you cannot be successful or happy. But with sound self-confidence […]