“I have a great respect for religion, and the subject has always fascinated me […]. Much of this fascination lies in the stunning historical paradox that organized religion has fostered, throughout Western history, both the most unspeakable horrors and the most heartrending examples of human goodness in the face of personal danger. (The evil, I believe, lies in an occasional confluence of religion with secular power. The Catholic Church has sponsored its share of horrors, from Inquisitions to liquidations—but only because this institution held great secular power during much of Western history. When my folks held such sway, more briefly and in Old Testament times, we committed similar atrocities with the same rationales.)”

The Salmon of Doubt (2002)
Context: I am fascinated by religion. (That's a completely different thing from believing in it!) It has had such an incalculably huge effect on human affairs. What is it? What does it represent? Why have we invented it? How does it keep going? What will become of it? I love to keep poking and prodding at it. I've thought about it so much over the years that that fascination is bound to spill over into my writing.

Progress In Religion (2000)
Context: I am neither a saint nor a theologian. To me, good works are more important than theology. We all know that religion has been historically, and still is today, a cause of great evil as well as great good in human affairs. We have seen terrible wars and terrible persecutions conducted in the name of religion. We have also seen large numbers of people inspired by religion to lives of heroic virtue, bringing education and medical care to the poor, helping to abolish slavery and spread peace among nations. Religion amplifies the good and evil tendencies of individual souls.

The Foundations of the Nineteenth Century (Die Grundlagen des neunzehnten Jahrhunderts) (1899)

October 1927. The Collected Works, Volume 35, New Delhi, 1968, pp. 166-67. As quoted in Goel, S.R. History of Hindu-Christian Encounters (1996)
1920s

Progress In Religion (2000)

De Abaitua interview (1998)
Context: Organised religion has corrupted one of the purest, most powerful and sustaining things in the human condition. It has imposed a middle management, not only in our politics and in our finances, but in our spirituality as well. The difference between religion and magic is the same as what we were talking about earlier – I think you could map that over those two poles of fascism and anarchism. Magic is closer to anarchism.

Literary Remains

During a speech at Lambeth Palace, 15/02/2012. Quoted on royal website http://www.royal.gov.uk/LatestNewsandDiary/Speechesandarticles/2012/TheQueensspeechatLambethpalace15February2012.aspx

"The Emotional Factor"Religion is based, I think, primarily and mainly upon fear.
Often paraphrased as "The Christian religion has been and still is the principal enemy of moral progress in the world."
1920s, Why I Am Not a Christian (1927)
Context: You find as you look around the world that every single bit of progress of humane feeling, every improvement in the criminal law, every step toward the diminution of war, every step toward better treatment of the colored races, or even mitigation of slavery, every moral progress that there has been in the world, has been consistently opposed by the organized churches of the world. I say quite deliberately that the Christian religion, as organized in its churches, has been and still is the principal enemy of moral progress in the world.