The first thing brought forth by the study of any religion, ancient or modern, is that it is based upon Fear, born of it, fed by it — and that it cultivates the source from which its nourishment is derived.

Primitive religions consisted mainly in the worship of the powers of nature. ...the essential thing in religion was not morality, but the ceremonial method of placating the god, securing his gifts, and ascertaining his wishes. He might even be pleased best by immoral actions, by the immolation of human victims, by the sacrifice of woman's chastity, or by the burning of the first born.

Religion is based, I think, primarily and mainly upon fear. It is partly the terror of the unknown and partly, as I have said, the wish to feel that you have a kind of elder brother who will stand by you in all your troubles and disputes. Fear is the basis of the whole thing – fear of the mysterious, fear of defeat, fear of death. Fear is the parent of cruelty, and therefore it is no wonder if cruelty and religion have gone hand-in-hand. It is because fear is at the basis of those two things. In this world we can now begin a little to understand things, and a little to master them by the help of science, which has forced its way step by step against the Christian religion, against the churches, and against the opposition of all the old precepts. Science can help us to get over this craven fear in which mankind has lived for so many generations. Science can teach us, and I think our own hearts can teach us, no longer to look around for imaginary supports, no longer to invent allies in the sky, but rather to look to our own efforts here below to make this world a fit place to live in, instead of the sort of place that the churches in all these centuries have made it.

Religion is based primarily upon fear. It is partly the terror of the unknown and partly as the wish to feel that you have a kind of elder brother who will stand by you in all your troubles and disputes. Fear of the mysterious, fear of defeat, fear of death. Fear is the parent of cruelty, and therefore it is no wonder if cruelty and religion have gone hand in hand. It is because fear is at the basis of those two things. In this world we can now begin a little to understand things, and a little to master them by help of science, which has forced its way step by step against the opposition of all the old precepts. Science can help us to get over this craven fear in which mankind has lived for so many generations. Science can teach us, and I think our own hearts can teach us, no longer to look around for imaginary supports, no longer to invent allies in the sky, but rather to look to our own efforts here below to make this world a fit place to live in, instead of the place that the churches in all these centuries have made it.

All religions are founded on the fear of the many and the cleverness of the few.

The only religion that ought to be taught is the religion of fearlessness. Either in this world or in the world of religion, it is true that fear is the sure cause of degradation and sin. It is fear that brings misery, fear that brings death, fear that breeds evil. And what causes fear? Ignorance of our own nature.

Primitive man... rushes to the satisfactory conclusion that that power must be itself infinite; that he, man, is not altogether finite, and so he constructs a doctrine of the soul and its immortality. Then he builds up myths, superstitions, primitive religions, dogmas, whereby the infinite is made subject to the finite—floating on this huge bladder of man's supposed immortality. The universe is given a purpose, and that purpose is man—the whole is made subordinate to the part. That is the first solution of the problem, the keystone of most concrete religions.

"Imagine that you're an intelligent extraterrestrial, concerned only with verifiable truths. You discover a species that has divided itself into thousands - no, by now millions - of tribal groups holding an incredible variety of beliefs about the origin of the universe and the way to behave in it. Although many of them have ideas in common, even when there's 99% overlap, the remaining one percent's enough to set them killing and torturing each other, over trivial points of doctrine, utterly meaningless to outsiders. "How to account for such irrational behavior? (...) religion was the by-product of fear - a reaction to a mysterious and often hostile universe. For much of human prehistory, it may have been a necessary evil - but why was it so much more evil than necessary - and why did it survive when it was no longer necessary?

That sort of fundamentalism which treats possession of private property not as a desirable economic and personal asset but as a condition of liberty is a form of primitive religion.

Fearful people develop their religions as protective devices, ways to manipulate hostile environments, formulas for identifying and defeating their enemies. The more fearful people are, the more enemies they have, the more adversarial language they use.

I regard [religion] as a disease born of fear and as a source of untold misery to the human race.

And thirdly, [we have] to defeat the absurd pantheist ideologies that believe that the walls are gods and the air is a god. In the end, to return to such primitive forms of religiosity where one is told, “don’t touch this hill because it is an Apu and is filled with millennia-old spirit,” and who knows what else. Well, if we reach that point, we wouldn’t do anything, much less mining. Don’t touch those fish because they are creatures of god and expressions of the god Poseidon. We would return to this, let’s say, primitive animism. Right? I think that we need more education [of these people], but that is long-term work that just can’t be fixed right away.

Fear breeds superstition.

In speaking of the fear of religion, I don’t mean to refer to the entirely reasonable hostility toward certain established religions and religious institutions, in virtue of their objectionable moral doctrines, social policies, and political influence. Nor am I referring to the association of many religious beliefs with superstition and the acceptance of evident empirical falsehoods. I am talking about something much deeper—namely, the fear of religion itself. I speak from experience, being strongly subject to this fear myself: I want atheism to be true and am made uneasy by the fact that some of the most intelligent and well-informed people I know are religious believers. It isn’t just that I don’t believe in God and, naturally, hope that I’m right in my belief. It’s that I hope there is no God! I don’t want there to be a God; I don’t want the universe to be like that.