Napoleon Hill Quotes about Fear
Napoleon Hill (2015). “Think and grow rich: Brazilian edition”, p.193, CDG Edições e Publicações LTDA
James Allen, Napoleon Hill, Benjamin Franklin, Wallace Delois Wattles (2011). “Automatic Wealth: The Secrets of the Millionaire Mind”, p.359, BookBaby
The most common cause of fear of old age is associated with the possibility of poverty.
Napoleon Hill, Dorothea Brande, Claude M. Bristol, Earl Nightingale “Earl Nightingale's "Strangest Secret" Library”, Lulu.com