Share the experiences of people who have lived fulfilled and happy lives -- by practicing joy and enthusiasm.

* Norman Cousins, who reversed a crippling disease by practicing the Biblical truth, "A merry heart doeth good like a medicine."

* Dr. Peale's friend, who saw excitement in a windy March morning and poetry in raindrops on bare branches

* The insurance salesman who changed from failure to success by applying the "as if" principle

* And many more, including:

Dr. Peale's own "Creed for Optimism" -- promising yourself to be too large for worry, too noble for anger, too strong for fear, and too happy for trouble.