H.L. Mencken:

By what route do otherwise sane men come to believe such palpable nonsense? How is it possible for a human brain to be divided into two insulated halves, one functioning normally, naturally and even brilliantly, and the other capable only of such ghastly balderdash which issues from the minds of Baptist evangelists? Such balderdash takes various forms, but it is at its worst when it is religious. Why should this be so? What is there in religion that completely flabbergasts the wits of those who believe in it? I see no logical necessity for that flabbergasting. Religion, after all, is nothing but an hypothesis framed to account for what is evidentially unaccounted for. In other fields such hypotheses are common, and yet they do no apparent damage to those who incline to them. But in the religious field they quickly rush the believer to the intellectual Bad Lands. He not only becomes anaesthetic to objective fact; he becomes a violent enemy of objective fact. It annoys and irritates him. He sweeps it away as something somehow evil. . .
-       The American Mercury, February 1926


It is the natural tendency of the ignorant to believe what is not true. In order to overcome that tendency it is not sufficient to exhibit the true; it is also necessary to expose and denounce the false. To admit that the false has any standing in court, that it ought to be handled gently because millions of morons cherish it and thousands of quacks make their livings propagating it—to admit this, as the more fatuous of the reconcilers of science and religion inevitably do, is to abandon a just cause to its enemies, cravenly and without excuse. It is, of course, quite true that there is a region in which science and religion do not conflict. That is the region of the unknowable.   
-   "The American Mercury " May 1926