Napoleon Hill Quotes about Determination

Effort only fully releases its reward after a person refuses to quit.
Dr. Robert C. Worstell, Dorothea Brande, Eark Nightingale, Claude M. Bristol, Napoleon Hill (2017). “Mindset StackingTM Inspirational Journal VolumeSS02”, p.144, Lulu.com
Napoleon Hill, Judith Williamson (2016). “Do It Now!”, p.155, Jaico Publishing House