What book
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Answer:
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In The Boy Who Harnessed the wind, William clubs the windmill and faces the villagers, who think he is foolish.
Charlie notes that he had been "foolish" to "ever have thought that professors were intellectual giants." He realizes that they are simply people, who are "afraid to reveal the narrowness of their knowledge."
Answer: a positive attitude can help you reach a successful path , because when having the right mentality you have enough motivation , patience and faith to get to your desired goals and/or position(s) .
Explanation: Good mentality = good self-esteem