This hideous doctrine of eternal torment after death has probably caused more terror and misery, more cruelty and more violation of natural human sympathy, than any belief in the history of mankind. Yet this doctrine was taught unambiguously by Jesus.

There is no ground whatever for the claim, so often made by religious apologists, that these ideals are specifically Christian and originated with Jesus. What were specifically Christian were some of the less enlightened teachings, which have done untold harm. Christians claim that organised Christianity has been a great force for good, but this view can be maintained on one assumption only: that everything good in the Christian era is a result of Christianity and everything bad happened in spite of it.

One of the best ways to improve men's behaviour is to enlighten their minds: and today, against the strong opposition of the Church and the Establishment, Scientific Humanism is attempting to do just that.

During the ages of faith the Church argued, not illogically, that any degree of cruelty towards sinners and heretics was justified, if there was a chance that it could save them, or others, from the eternal torments of hell. Thus, in the name of the religion of love, hundreds of thousands of people were not merely killed but atrociously tortured in ways that made the gas chambers of Beslen seem humane.

Jesus, in fact, was typical of a certain kind of fanatical young idealist: at one moment holding forth, with tears in his eyes, about the need for universal love; at the next, furiously denouncing the morons, crooks and bigots who did not see eye to eye with him. It is very natural and very human behaviour. But it is not superhuman.

I was convinced that, besides millions of frank unbelievers, there are today large numbers of half-believers to whom religion is a source of intellectual and moral discomfort.

My chief aim was to combat the view that there can be no true morality without supernatural sanctions. So I argued at length that the social, or altruistic, impulses are the real source of morality, and that an ethic based on these impulses has far more claim on our allegiance than an ethic based on obedience to the commands of a God who created tapeworms and cancer-cells.