Authors:
  • Happiness is a 'state of mind' which we ourselves have the power to control - and that control lies in our thinking.

    Dr. Robert C. Worstell, Dorothea Brande, Eark Nightingale, Claude M. Bristol, Napoleon Hill (2017). “Mindset StackingTM Inspirational Journal VolumeSS02”, p.106, Lulu.com