Earl Nightingale Quotes about Attitude
Robert C. Worstell, Earl Nightingale (2012). “How to Completely Change Your Life in 30 Seconds”, p.15, Lulu Press, Inc
Our environment, the world in which we live and work, is a mirror of our attitudes and expectations.
"How to Completely Change Your Life in 30 Seconds - Part IV".
Earl Nightingale (1969). “This is Earl Nightingale”, Doubleday Books
Dr. Robert C. Worstell, Dorothea Brande, Claude M. Bristol, Earl Nightingale, Napoleon Hill (2017). “Mindset StackingTM Inspirational Journal VolumeSS01”, p.80, Lulu.com
Dr. Robert C. Worstell, Dorothea Brande, Claude M. Bristol, Earl Nightingale, Napoleon Hill (2017). “Mindset StackingTM Inspirational Journal VolumeSS01”, p.66, Lulu.com