It is difficult, none the less, for the ordinary man to cast off orthodox beliefs, for he is seldom allowed to hear the other side... Whereas the Christian view is pressed on him day in and day out.

One of the most persistent fallacies about the Christian Church is that it kept learning alive during the Dark and Middle Ages. What the Church did was to keep learning alive in the monasteries, while preventing the spread of knowledge outside them... Even as late as the beginning of the nineteenth century, however, nine-tenths of Christian Europe was illiterate.

There is no justification for the common claim that Christianity was responsible for the abolition of slavery. The Negro slave trade - a far more infamous practice than slavery in the ancient world - was initiated, carried on and defended by Christian men in Christian countries.

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.

Ethical teaching is weakened if it is tied up with dogmas that will not bear examination.

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.

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.