One of the monumental ironies of religious discourse can be appreciated in the frequency with which people of faith praise themselves for their humility, while condemning scientists and other nonbelievers for their intellectual arrogance. There is, in fact, no worldview more reprehensible in its arrogance than that of a religious believer: the creator of the universe takes an interest in me, approves of me, loves me, and will reward me after death; my current beliefs, drawn from scripture, will remain the best statement of the truth until the end of the world; everyone who disagrees with me will spend eternity in hell... An average Christian, in an average church, listening to an average Sunday sermon has achieved a level of arrogance simply unimaginable in scientific discourse - and there have been some extraordinarily arrogant scientists.

Through the reading of popular scientific books I soon reached the conviction that much in the stories of the Bible could not be true. The consequence was a positively fanatic orgy of freethinking coupled with the impression that youth is intentionally being deceived by the state through lies; it was a crushing impression. Mistrust of every kind of authority grew out of this experience, a skeptical attitude toward the convictions that were alive in any specific social environment - an attitude that has never again left me.
- Albert Einstein, Autobiographical Notes, edited by Paul Arthur Schilpp

I am often accused of expressing contempt and despising religious people. I don't despise religious people, I despise what they stand for. I like to quote the British journalist Johann Hari who said, "I have so much respect for you, that I cannot respect your ridiculous ideas."

"I have been called arrogant myself in my time, and hope to earn the title again, but to claim that I am privy to the secrets of the universe and its creator — that's beyond my conceit. I therefore have no choice but to find something suspect even in the humblest believer. Even the most humane and compassionate of the monotheisms and polytheisms are complicit in this quiet and irrational authoritarianism: they proclaim us, in Fulke Greville's unforgettable line, "Created sick — Commanded to be well." And there are totalitarian insinuations to back this up if its appeal should fail. Christians, for example, declare me redeemed by a human sacrifice that occurred thousands of years before I was born. I didn't ask for it, and would willingly have foregone it, but there it is: I'm claimed and saved whether I wish it or not. And if I refuse the unsolicited gift? Well, there are still some vague mutterings about an eternity of torment for my ingratitude. That is somewhat worse than a Big Brother state, because there could be no hope of its eventually passing away."

"Belief in the traditional sense, or certitude, or dogma, amounts to the grandiose delusion, "My current model" — or grid, or map, or reality-tunnel — "contains the whole universe and will never need to be revised." In terms of the history of science and knowledge in general, this appears absurd and arrogant to me, and I am perpetually astonished that so many people still manage to live with such a medieval attitude."

There is, in fact, no worldview more reprehensible in its arrogance than that of a religious believer: the creator of the universe takes an interest in me, approves of me, loves me, and will reward me after death; my current beliefs, drawn from scripture, will remain the best statement of the truth until the end of the world; everyone who disagrees with me will spend eternity in hell….