Thomas Paine,
The Age of Reason/Part I — Chapter XVII - Of the Means Employed in All Time…
“ The very nature and design of religion, if I may so express it, prove even to demonstration that it must be free from every thing of mystery, and unincumbered with every thing that is mysterious. Religion, considered as a duty, is incumbent upon every living soul alike, and, therefore, must be on a level to the understanding and comprehension of all. Man does not learn religion as he learns the secrets and mysteries of a trade. ”
