Men who irrationally assent to anything, resemble those who are delighted with jugglers and enchanters. For as most of these are depraved characters, who deceive the vulgar, and persuade them to assent to whatever they please, this also takes place with the Christians. Some of these are not willing either to give or receive a reason for what they believe; but are accustomed to say Do not investigate, but believe, your faith will save you. For the wisdom of the world is bad, but folly is good.
From The Arguments of Celsus against the Christians