Whoever the psalmist turns out to have been, he was obviously pleased enough with the polish and address of psalm 14 to repeat it virtually word for word as psalm 53.

Both versions begin with the identical statement that "The fool has said in his heart, there is no God." For some reason, this null remark is considered significant enough to be recycled throughout all religious apologetics. All that we can tell for sure from the otherwise meaningless assertion is that unbelief—not just heresy and backsliding but unbelief—must have been known to exist even in that remote epoch. Given the then absolute rule of unchallenged and brutally punitive faith, it would perhaps have been a fool who did not keep this conclusion buried deep inside himself, in which case it would be interesting to know how the psalmist knew it was there. (Dissidents used to be locked up in Soviet lunatic asylums for "reformist delusions," it being quite naturally and reasonably assumed that anybody mad enough to propose reforms had lost all sense of self-preservation.)

Our species will never run out of fools but I dare say that there have been at least as many credulous idiots who professed faith in god as there have been dolts and simpletons who concluded otherwise.

It might be immodest to suggest that the odds rather favour the intelligence and curiosity of the atheists, but it is the case that some humans have always noticed the improbability of god, the evil done in his name, the likelihood that he is man-made, and the availability of less harmful alternative beliefs and explanations. We cannot know the names of all these men and women, because they have in all times and all places been subject to ruthless suppression. For the identical reason, nor can we know how many ostensibly devout people were secretly unbelievers. As late as the eighteenth and nineteenth centuries, in relatively free societies such as Britain and the United States, unbelievers as secure and prosperous as James Mill and Benjamin Franklin felt it advisable to keep their opinions private. Thus, when we read of the glories of "Christian" devotional painting and architecture, or "Islamic" astronomy and medicine, we are talking about advances of civilization and culture—some of them anticipated by Aztecs and Chinese—that have as much to do with "faith" as their predecessors had to do with human sacrifice and imperialism. And we have no means of knowing, except in a very few special cases, how many of these architects and painters and scientists were preserving their innermost thoughts from the scrutiny of the godly. Galileo might have been unmolested in his telescopic work if he had not been so unwise as to admit that it had cosmological implications.

From the book "god is not great" by Christopher Hitchens