The most beautiful emotion we can experience is the mystical. It is the power of all true art and science. He to whom this emotion is a stranger, who can no longer wonder and stand rapt in awe, is as good as dead. To know that what is impenetrable to us really exists, manifesting itself as the highest wisdom and the most radiant beauty, which ourdull faculties can comprehend only in their most primitive formsöthis knowledge, this feeling, isatthe centerof true religiousness.In thissense, and in this sense only, I belong to the rank of devoutly religious men.

-Einstein, Albert
Quoted in Philipp Frank Einstein: HisLife and Times (1947), ch.12, section 5.