You may call me an agnostic, but I do not share the crusading spirit of the professional atheist whose fervor is mostly due to a painful act of liberation from the fetters of religious indoctrination received in youth. I prefer an attitude of humility corresponding to the weakness of our intellectual understanding of nature and of our own being.

Albert Einstein (1879-1955) German-American physicist

Letter to Guy H. Raner Jr. (28 Sep 1949)