Religious faith, is a state of mind, that leads people to believe in something, it doesn't matter what, without a whisper of doubt, or a whiff of evidence, and believe so strongly in some cases, that they are prepare to kill and die for it, without the need for further justification.

Maybe somewhere in some other galaxy there is a super-intelligence so colossal that from our point of view it would be a god. But it cannot have been the sort of God that we need to explain the origin of the universe, because it cannot have been there that early.

I think that's the mother and father of all cop-outs. It's an honest scientific quest to discover where this apparent improbability comes from. Now [Francis] Collins says, "Well, God did it. And God needs no explanation because God is outside all this." Well, what an incredible evasion of the responsibility to explain. Scientists don't do that. Scientists say, "We're working on it. We're struggling to understand."

Religion is unusual among divisive labels in being spectacularly unnecessary. If religious beliefs had any evidence going for them, we might have to respect them in spite of their concomitant unpleasantness. But there is no such evidence. To label people as death-deserving enemies because of disagreements about real world politics is bad enough. To do the same for disagreements about a delusional world inhabited by archangels, demons and imaginary friends is ludicrously tragic.

Far from being demeaning to human spiritual values, scientific rationalism is the crowning glory of the human spirit. Of course you can use the products of science to do bad things, but you can use them to do good things too.

There is no reason to regard God as immune from consideration along the spectrum of probabilities. And there is certainly no reason to suppose that, just because God can be neither proved nor disproved, his probability of existence is 50 per cent.

The world and the universe is an extremely beautiful place, and the more we understand about it the more beautiful does it appear.