Religion has been a powerful weapon in the hands of governments, in the hands of priests, in the hands of kings who have used it as a weapon to keep down the populace. It is a wonderful way of disciplining people and making them do what you want, to tell them that if they don't do what you want they will, for example, go to Hell.

Science tells us what we have reason to believe. Not what we have a duty to believe. Not what experts, in their pontificating wisdom, instruct us to believe... No, science tells us what there is good reason to believe.

A gene might be able to assist replicas of itself that are sitting in other bodies. If so, this would appear as individual altruism but it would be brought about by gene selfishness.

If you are religious at all, it is overwhelmingly probable that your religion is that of your parents. If you were born in Arkansas and you think Christianity is true and Islam false (knowing full well that you would think the opposite if you had been born in Afghanistan), you are the victim of childhood indoctrination.

If you were to actually travel around schools and universities and listen in on lectures about evolution you might find a fairly substantial fraction of young people, without knowing what it is they disapprove of, think they disapprove of it, because they've been brought up to.

It really comes down to parsimony, economy of explanation. It is possible that your car engine is driven by psychokinetic energy, but if it looks like a petrol engine, smells like a petrol engine and performs exactly as well as a petrol engine, the sensible working hypothesis is that it is a petrol engine.

I suspect the reason is that most people [...] have a residue of feeling that Darwinian evolution isn't quite big enough to explain everything about life. All I can say as a biologist is that the feeling disappears progressively the more you read about and study what is known about life and evolution. I want to add one thing more. The more you understand the significance of evolution, the more you are pushed away from the agnostic position and towards atheism. Complex, statistically improbable things are by their nature more difficult to explain than simple, statistically probable things.