At this point one must expect to meet with an objection. ‘Well then, if even obdurate sceptics admit that the assertions of religion cannot be refuted by reason, why should I not believe in them, since they have so much on their side tradition, the agreement of mankind, and all the consolations they offer?’ Why not, indeed? Just as no one can be forced to believe, so no one can be forced to disbelieve. But do not let us be satisfied with deceiving ourselves that arguments like these take us along the road of correct thinking. If ever there was a case of a lame excuse we have it here. Ignorance is ignorance; no right to believe anything can be derived from it. In other matters no sensible person will behave so irresponsibly or rest content with such feeble grounds for his opinions and for the line he takes. It is only in the highest and most sacred things that he allows himself to do so.
Sigmund Freud, The Future of an Illusion, part VI