“On entering adult life, however, a young person so [to be fearless and friendly] educated will find himself or herself plunged into a world full of injustice, full of cruelty, full of preventable misery. The injustice, the cruelty, and the misery that exist in the modern world are an inheritance from the past, and their ultimate source is economic, since life-and-death competition for the means of subsistence was in former days inevitable. It is not inevitable in our age. With our present industrial technique we can, if we choose, provide a tolerable subsistence for everybody. We could also secure that the world’s population should be stationary if we were not prevented by the political influence of Churches which prefer war, pestilence, and famine to contraception. The knowledge exists by which universal happiness can be secured; the chief obstacle to its utilisation for that purpose is the teaching of religion. Religion prevents our children from having a rational education; religion prevents us from removing the fundamental causes of war; religion prevents us from teaching the ethic of scientific co-operation in place of the fierce doctrines of sin and punishment.

It is possible that mankind is on the threshold of a golden age; but, if so, it will be necessary first to slay the dragon that guards the door, and this dragon is religion.

– Bertrand Russell, Has religion made useful contributions to civilisation?