The human psyche has two great sicknesses: the urge to carry vendetta across generations, and the tendency to fasten group labels on people rather than see them as individuals. Abrahamic religion gives strong sanction to both-and mixes explosively with both. Only the willfully blind could fail to implicate the divisive force of religion in most, if not all, of the violent enmities in the world today.

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 others are running for their lives, whimpering with fear, others are slowly being devoured from within by rasping parasites, thousands of all species are dying of starvation, thirst, and disease. The universe that we observe has precisely the properties we should expect if there is, at bottom, no design, no purpose, no evil, no good, nothing but pitiless indifference.

Or why it is acceptable to train fast runners and high jumpers but not to breed them. I can think of some answers, and they are good ones, which would probably end up persuading me. But hasn't the time come when we should stop being frightened even to put the question?

The messages that DNA molecules contain are all but eternal when seen against the time scale of individual lifetimes. The lifetimes of DNA messages give or take a few mutations are measured in units ranging from millions of years to hundreds of millions of years; or, in other words, ranging from 10,000 individual lifetimes to a trillion individual lifetimes. Each individual organism should be seen as a temporary vehicle, in which DNA messages spend a tiny fraction of their geological lifetimes.

I do think the Roman Catholic religion is a disease of the mind which has a particular epidemiology similar to that of a virus... Religion is a terrific meme. That's right. But that doesn't make it true and I care about what's true. Smallpox virus is a terrific virus. It does its job magnificently well. That doesn't mean that it's a good thing. It doesn't mean that I don't want to see it stamped out.

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.

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.