However statistically improbable the entity you seek to explain by invoking a designer, the designer himself has got to be at least as improbable. God is the Ultimate Boeing 747.

Evolution could so easily be disproved if just a single fossil turned up in the wrong date order. Evolution has passed this test with flying colours.

Dan Nilsson even remarks of compound eyes that ‘It is only a small exaggeration to say that evolution seems to be fighting a desperate battle to improve a basically disastrous design.

Even those who do not, or cannot, avail themselves of a scientific education, choose to benefit from the technology that is made possible by the scientific education of others.

It’s been suggested that if the super-naturalists really had the powers they claim, they’d win the lottery every week. I prefer to point out that they could also win a Nobel Prize for discovering fundamental...

If God wanted to forgive our sins, why not just forgive them, without having himself tortured and executed in payment—thereby, incidentally, condemning remote future generations of Jews to pogroms and persecution as ‘Christ-killers’: did that...

We have looked at some of the things that a female might do if she has been deserted by her mate. But these all have the air of making the best of a bad job....

My main reason for scepticism about the Huxley/Sagan theory is that the human brain is demonstrably eager to see faces in random patterns, as we know from scientific evidence, on top of the numerous legends...

We can give up belief in God while not losing touch with a treasured heritage.

most of us happily disavow fairies, astrology and the Flying Spaghetti Monster, without first immersing ourselves in books of Pastafarian theology etc.

…when two opposite points of view are expressed with equal intensity, the truth does not necessarily lie exactly halfway between them. It is possible for one side to be simply wrong.

I don’t give a damn for anybody’s opinion, I only care about the facts. So I’m not an enthusiast for diversity of opinion where factual matters are concerned.

It is absolutely safe to say that if you meet somebody who claims not to believe in evolution, that person is ignorant, stupid or insane (or wicked, but I’d rather not consider that).

When challenged by a zealous Popperian to say how evolution could ever be falsified, J. B. S. Haldane famously growled: ‘Fossil rabbits in the Precambrian.

Even if it were true that evolution, or the teaching of evolution, encouraged immorality that would not imply that the theory of evolution was false.

If you’re an atheist, you know, you believe, this is the only life you’re going to get. It’s a precious life. It’s a beautiful life. Its something we should live to the full, to the...

The adult world may seem a cold and empty place, with no fairies and no Father Christmas, no Toyland or Narnia, no Happy Hunting Ground where mourned pets go, and no angels – guardian or...

Consider again the mated pair with which we began the chapter. Both partners, as selfish machines, ‘want’ sons and daughters in equal numbers. To this extent they agree. Where they disagree is in who is...

The total amount of suffering per year in the natural world is beyond all decent contemplation. During the minute that it takes me to compose this sentence, thousands of animals are being eaten alive, many...

…the Genesis story is just one that happened to have been adopted by one particular tribe of Middle Eastern herders. It has no more special status than the belief of a particular West African tribe...

And some scientists and other intellectuals are convinced—too eagerly in my view—that the question of God’s existence belongs in the forever inaccessible PAP category. From this, as we shall see, they often make the illogical...

Creationists eagerly seek a gap in present-day knowledge or understanding. If an apparent gap is found, it is assumed that God, by default, must fill it.

Jesus was not content to derive his ethics from the scriptures of his upbringing. He explicitly departed from them. […] Since a principal thesis of this chapter is that we do not, and should not,...

The chicken is only an egg’s way for making another egg.

Darwin himself said as much: ‘If it could be demonstrated that any complex organ existed which could not possibly have been formed by numerous, successive, slight modifications, my theory would absolutely break down. But I...

A child is not a Christian child, not a Muslim child, but a child of Christian parents or a child of Muslim parents. This latter nomenclature, by the way, would be an excellent piece of...

A god who is capable of sending intelligible signals to millions of people simultaneously, and of receiving messages from all of them simultaneously, cannot be, whatever else he might be, simple. Such Bandwidth!

Not to grow up properly is to retain our ‘caterpillar’ quality from childhood (where it is a virtue) into adulthood (where it becomes a vice). In childhood our credulity serves us well. It helps us...

The feeling of awed wonder that science can give us is one of the highest experiences of which the human psyche is capable. It is a deep aesthetic passion to rank with the finest that...

It does not seem ever to have been satisfactorily answered why the two first operational atomic bombs were used — against the strongly voiced wishes of the leading physicists responsible for developing them — to...

More generally, as I shall repeat in Chapter 8, one of the truly bad effects of religion is that it teaches us that it is a virtue to be satisfied with not understanding.

The fact that we can neither prove nor disprove the existence of something does not put existence and non-existence on an even footing.

We are all atheists about most of the gods that humanity has ever believed in. Some of us just go one god further.

I know that not all my readers like my digressions, but the research that has been done on Caenorhabditis elegans is such a ringing triumph of science that you aren’t going to stop me.

We admit that we are like apes, but we seldom realize that we are apes.

Darwin singled out the eye as posing a particularly challenging problem: ‘To suppose that the eye with all its inimitable contrivances for adjusting the focus to different distances, for admitting different amounts of light, and...

To be fair, much of the Bible is not systematically evil but just plain weird, as you would expect of a chaotically cobbled-together anthology of disjointed documents, composed, revised, translated, distorted and ‘improved’ by hundreds...

Either blasphemy is a victimless crime or its victim is powerful enough to take care of himself without any help from you.

Isaac Asimov’s remark about the infantilism of pseudoscience is just as applicable to religion: ‘Inspect every piece of pseudoscience and you will find a security blanket, a thumb to suck, a skirt to hold.’ It...

[I]sn’t it sad to go to your grave without ever wondering why you were born? Who, with such a thought, would not spring from bed, eager to resume discovering the world and rejoicing to be...

The truth is more magical – in the best and most exciting sense of the word – than any myth or made-up mystery or miracle. Science has its own magic: the magic of reality.

I agree with people like Richard Dawkins that mankind felt the need for creation myths. Before we really began to understand disease and the weather and things like that, we sought false explanations for them....

Faith can be very very dangerous, and deliberately to implant it into the vulnerable mind of an innocent child is a grievous wrong.

When I am dying, I should like my life taken out under general anaesthetic, exactly as if it were a diseased appendix.

Oh golly, Brer Fox, your forthright assertion—that evolutionary biology disproves the idea of a creator God—jeopardises the teaching of biology in science class, since teaching that would violate the separation of church and state!’ Right....

We are survival machines – robot vehicles blindly programmed to preserve the selfish molecules known as genes. This is a truth which still fills me with astonishment.

What shall it profit a male if he shall gain the whole world, and lose his immortal genes?

Religion is about turning untested belief into unshakable truth through the power of institutions and the passage of time.

I am passionate about the truth. Passion is very different from fundamentalism.

If all the evidence in the universe turned in favour of creationism, I would be the first to admit it, and I would immediately change my mind. As things stand, however, all available evidence (and...