All qualified physicists, biologists, cosmologists and geologists agree, on the basis of massive, mutually corroborating evidence, that the earth's age is at least four billion years.

The illusion of design is so successful that to this day most Americans (including, significantly, many influential and rich Americans) stubbornly refuse to believe it is an illusion.

Being dead will be no different from being unborn -- I shall be just as I was in the time of William the Conqueror or the dinosaurs or the trilobites. There is nothing to fear in that.

It's an important point to realize that the genetic programming of our lives is not fully deterministic. It is statistical - it is in any animal merely statistical - not deterministic.

Darwin gives courage to the rest of science that we shall end up understanding literally everything, springing from almost nothing - a thought extremely hard to comprehend and believe.

Why did humans lose their body hair? Why did they start walking on their hind legs? Why did they develop big brains? I think that the answer to all three questions is sexual selection.

The more statistically improbable a thing is, the less we can believe that it just happened by blind chance. Superficially, the obvious alternative to chance is an intelligent Designer.

I suppose I'm a cultural Anglican, and I see evensong in a country church through much the same eyes as I see a village cricket match on the village green. I have a certain love for it.

Anybody who has something sensible or worthwhile to say should be able to say it calmly and soberly, relying on the words themselves to convey his meaning, without resorting to yelling.

I don't want to sound callous. I mean, even if I have nothing to offer, that doesn't matter, because that still doesn't mean that what anybody else has to offer therefore has to be true.

I great difficulty having any respect for a religion that has so little confidence in the truth of its beliefs that it feels reduced to using threats in order to propagate those beliefs.

I've always been antagonistic to any naïve application of the selfish gene theory to politics. Some people have attempted to suggest that it means we are selfish or we should be selfish.

In the World Wars, people were perfectly able to shoot other people just because they belonged to the wrong country, without ever asking what their opinions were. Faith too is like that.

You believe that all humanity came from Adam and Eve, and humans have not evolved at all since. So tell me; between the two of them, which was black, which was white, and which was Asian?

I am persuaded that 'child abuse' is no exaggeration when used to describe what teachers and priests are doing to children whom they encourage to believe in something like...eternal hell.

People who believe the earth was created 6000 years ago, when it's actually 4.5 billion years old, should also believe the width of North America is 8 yards. That is the scale of the error.

Of course in science there are things that are open to doubt and things need to be discussed. But among the things that science does know, evolution is about as certain as anything we know.

What really happens is that the gene pool becomes filled with genes that influence bodies in such a way that they behave 'as if' they made complex, if unconscious, cost/benefit calculations

If a healing technique is demonstrated to have curative properties in properly controlled double-blind trials, it ceases to be alternative. It simply, as Diamond explains, becomes medicine.

We are built as gene machines and cultured as meme machines, but we have the power to turn against our creators. We, alone on earth, can rebel against the tyranny of the selfish replicators.

Don't feel embarrassed if you've never heard of William Lane Craig. He parades himself as a philosopher, but none of the professors of philosophy whom I consulted had heard his name, either.

If you're willing to answer yes to a God outside of nature, then there's nothing inconsistent with God on rare occasions choosing to invade the natural world in a way that appears miraculous.

I do not believe there is an atheist in the world who would bulldoze Mecca-or Chartres, York Minster or Notre Dame, the Shwe Dagon, the temples of Kyoto or, of course, the Buddhas of Bamiyan.

Bush and bin Laden are really on the same side: the side of faith and violence against the side of reason and discussion. Both have implacable faith that they are right and the other is evil.

It has been convincingly demonstrated that countries where there are high rates of poverty, or high rates of economic inequality, are the countries with the highest rates of religious beliefs.

In two senses: One is that you cannot go on the street and shout that you are an atheist, the other is that you are never given the intellectual framework for calling your faith into question.

There are risks in the sheer brevity of Twitter, and it's actually quite an elegant art reducing what you have to say to 140 characters, and it's something that I quite enjoy attempting to do.

It has become almost a cliché to remark that nobody boasts of ignorance of literature, but it is socially acceptable to boast ignorance of science and proudly claim incompetence in mathematics.

Presumably what happened to Jesus was what happens to all of us when we die. We decompose. Accounts of Jesus's resurrection and ascension are about as well-documented as Jack and the Beanstalk.

People who criticize The Selfish Gene like that often haven't read it. The selfish gene accounts for altruism toward kin and individuals who might be in a position to reciprocate your altruism.

The chances of each of us coming into existence are infinitesimally small, and even though we shall all die some day, we should count ourselves fantastically lucky to get our decades in the sun.

If I were God wanting to make a human being, I would do it by a more direct way rather than by evolution. Why deliberately set it up in the one way which makes it look as though you don't exist?

Many people want to send their children to faith schools because they get good exam results, but they're not foolish enough to believe that it's because of faith that they get good exam results.

They are either people of faith who have lost their faith from reading my books, or they are people who had already lost their faith, and something about my books encouraged them to affirm that.

When I say that human beings are just gene machines, one shouldn't put too much emphasis on the word 'just.' There is a very great deal of complication, and indeed beauty in being a gene machine.

A designer God cannot be used to explain organized complexity because any God capable of designing anything would have to be complex enough to demand the same kind of explanation in his own right.

If children were taught to question and think through their beliefs, instead of being taught the superior virtue of faith without question, it is a good bet that there would be no suicide bombers.

I am trying to call attention to the elephant in the room that everybody is too polite - or too devout - to notice: religion, and specifically the devaluing effect that religion has on human life.

I'm fascinated by the idea that genetics is digital. A gene is a long sequence of coded letters, like computer information. Modern biology is becoming very much a branch of information technology.

Anyone who's lived with companion cats or dogs knows that they are unique individuals with their own personalities. I think animals' secret to getting along is that they are not burdened by an ego.

Science has eradicated smallpox, can immunise against most previously deadly viruses, can kill most previously deadly bacteria. Theology has done nothing but talk of pestilence as the wages of sin.

Isn'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 part of it?

If you divide Christians into denominations, agnostics and atheists come in third, behind Catholics and Baptists. That's interesting when you contrast it with the lack of influence of nonbelievers.

I detest 'Jingle Bells,' 'White Christmas,' 'Rudolph the Red Nosed Reindeer,' and the obscene spending bonanza that nowadays seems to occupy not just December, but November and much of October, too.

I think what attracts me about the Electric Monk is that it's such an eloquent example of the futility of belief for belief's sake. I mean there's only any point in believing something if it's true.

Many of us saw religion as harmless nonsense. Beliefs might lack all supporting evidence but, we thought, if people needed a crutch for consolation, where's the harm? September 11th changed all that.

Scientific truth is too beautiful to be sacrificed for the sake of light entertainment or money. Astrology is an aesthetic affront. It cheapens astronomy, like using Beethoven for commercial jingles.

Like computer viruses, successful mind viruses will tend to be hard for their victims to detect. If you are the victim of one, the chances are that you won't know it, and may even vigorously deny it.

It is a virtue to admit ignorance when you don't know, but not to wallow in ignorance as an end in itself. People say if we don't believe god is watching over us, we abandon morality. Are they right?

You contain a trillion copies of a large, textual document written in a highly accurate, digital code, each copy as voluminous as a substantial book. I'm talking, of course, of the DNA in your cells.

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