" Reason the Only Oracle of Man, Ethan Allen titled his work, expressing the widespread viewpoint. “Fix reason firmly in her seat,” writes Jefferson to a nephew, “and call to her tribunal every fact, every opinion. Question with boldness even the existence of a God; because, if there is one, he must more approve of the homage of reason, than that of blindfolded fear. "

― Leonard Peikoff , The Ominous Parallels