There is no substitute for faith, no alternative for revelation, no surrogate for commitment. This we must remember in order to save our thought from confusion. And confusion is not a rare disease. We are guilty of commiting the fallacy of misplacement. We define self-reliance and call it faith, shrewdness and call it wisdom, anthropology and call it ethics, conscience and call it God. However, nothing counterfeit can endure forever. Theories may intensify oblivion, yet there is a spirit in history to reminds us.

A.J. Heschel, Religion in a Free Society, in The Insecurity of Freedom, FS&G, p. 3