"Is enthusiasm important in selling? Yes, genuine, heartfelt enthusiasm is one of the most potent factors of success in almost any undertaking."

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Source: Dale Carnegie (2016). “How to win friends & influence people”, p.49, Diamond Pocket Books Pvt Ltd

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Dale Carnegie

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Dale Carnegie was a pioneering author and lecturer known for his work on personal development and effective communication, particularly through 'How to Win Friends and Influence People.'

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