The Romans called the Christians atheists. Why? Well, the Christians had a god of sorts, but it wasn't a real god. They didn't believe in the divinity of apotheosized emperors or Olympian gods. They had a peculiar, different kind of god. So it was very easy to call people who believed in a different kind of god atheists. And that general sense that an atheist is anybody who doesn't believe exactly as I do prevails in our own time.
Progress is Providence without God. That is, it is a theory that everything has always perpetually gone right by accident. It is a sort of atheistic optimism, based on an everlasting coincidence far more miraculous than a miracle.
An atheist is but a mad, ridiculous derider of piety, but a hypocrite makes a sober jest of God and religion; he finds it easier to be upon his knees than to rise to a good action.
I never wavered in my certainty that God did not exist. I was simply liberated by the thought that there might be a way to engage with religion without having to subscribe to its supernatural content - a way, to put it in more abstract terms, to think about Fathers without upsetting my respectful memory of my own father. I recognized that my continuing resistance to theories of an afterlife or of heavenly residents was no justification for giving up on the music, buildings, prayers, rituals, feasts, shrines, pilgrimages, communal meals and illustrated manuscripts of the faiths.
If we're capable of conjuring up terrifying monsters in childhood, why shouldn't some of us, at least on occasion, be able to fantasize something similar, something truly horrifying, a shared delusion, as adults?