Norman Vincent Peale: Do you believe in yourself?
Believe in yourself! Have faith in your abilities! Without a humble but reasonable confidence in your own powers you cannot be successful or happy.
Dr. Norman Vincent Peale (May 31, 1898 - December 24, 1993) was a minister and author (most notably of The Power of Positive Thinking) and a progenitor of "positive thinking". His ideas were not accepted by mental health experts.