"Even in such technical lines as engineering, about 15% of one's financial success is due one's technical knowledge and about 85% is due to skill in human engineering, to personality and the ability to lead people."

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Source: How To Win Friends and Influence People.

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Dale Carnegie

Author, Speaker

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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