“Be so strong that nothing can disturb your peace of mind. Talk health, happiness, and prosperity to every person you meet. Make all your friends feel there is something special in them. Look at the sunny side of everything. Think only the best, be as enthusiastic about the success of others as you are about your own.

Forget the mistakes of the past and press on to the greater achievements of the future. Give everyone a smile. Spend so much time improving yourself that you have no time left to criticize others. Be too big for worry and too noble for anger.”
― Norman Vincent Peale

 “The way to happiness: Keep your heart free from hate, your mind from worry. Live simply, expect little, give much. Scatter sunshine, forget self, think of others. Try this for a week and you will be surprised.”
― Norman Vincent Peale, The Power of Positive Thinking

“Formulate and stamp indelibly on your mind a mental picture of yourself as succeeding. Hold this picture tenaciously. Never permit it to fade. Your mind will seek to develop the picture... Do not build up obstacles in your imagination.”
― Norman Vincent Peale, The Power of Positive Thinking