I believe that imagination is stronger than knowledge —
That myth is more potent than history.
I believe that dreams are more powerful than facts —
That hope always triumphs over experience —
That laughter is the only cure for grief.
And I believe that love is stronger than death.

"Credo" at his official website; this may be partly influenced by remarks of Albert Einstein in "What Life Means to Einstein: An Interview by George Sylvester Viereck" The Saturday Evening Post (26 October 1929): I am enough of an artist to draw freely upon my imagination. Imagination is more important than knowledge. Knowledge is limited. Imagination encircles the world.