“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.
Dr. Norman Vincent Peale (May 31, 1898 - December 24, 1993) was a Protestant preacher and author (most notably of the controversial The Power of Positive Thinking) and a progenitor of the theory of "positive thinking"