“In those parts of the world where learning and science has prevailed, miracles have ceased; but in such parts of it as are barbarous and ignorant, miracles are still in vogue; which is of itself a strong presumption that in the infancy of letters, learning and science, or in the world's non-age, those who confided in miracles, as a proof of the divine mission of the first promulgators of revelation, were imposed upon by fictitious appearances instead of miracles.”