My friend JZ wrote a while ago that every child is born an atheist and some theists objected to this claim.
Today while I was going through one of my books I came across this gem by Jean Meslier.
All religious principles are founded upon the idea of a God, but it is impossible for men to have true ideas of a being who does not act upon any one of their senses. All our ideas are but pictures of objects which strike us. What can the idea of God represent to us when it is evidently an idea without an object? Is not such an idea as impossible as an effect without a cause? An idea without a prototype, is it anything but a chimera? Some theologians, however, assure us that the idea of God is innate, or that men have this idea from the time of their birth. Every principle is a judgment; all judgment is the effect of experience; experience is not acquired but by the exercise of the senses: from which it follows that religious principles are drawn from nothing, and are not innate.