Let our tribute to the dead be a new resolve: to respect people for what they individually think, rather than respect groups for what they were collectively brought up to believe.

Next time that somebody tells you something is true, why not say to them: 'What kind of evidence is there for that?' And if they can't give you a good answer, I hope you'll think very carefully before you believe a word they say.

I don't shout people down. I argue people down, perhaps.

People like to trace their ancestry.

There is another kind of altruism that seems to go beyond that, a kind of super-altruism, which humans appear to have. And I think that does need a Darwinian explanation.

I might respect you as a brilliant intellect, runner, musician or juggler. But respect your BELIEFS? Only if they're supported by evidence.

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 there is a vast amount of it) favours evolution.