After sleeping through a hundred million centuries we have finally opened our eyes on a sumptuous planet, sparkling with color, bountiful with life. Within decades we must close our eyes again. Isn’t it a noble, an enlightened way of spending our brief time in the sun, to work at understanding the universe and how we have come to wake up in it? This is how I answer when I am asked—as I am surprisingly often—why I bother to get up in the mornings.

If you are offended by reading views that disagree with yours, then yes, you will be offended. However, it is not gratuitously offensive, it simply puts an argument, and if your views are strong enough, as I believe they are, you will be able to defend your views. You will not say, "Oh, it's offensive, it's offensive." You will say "No, you are wrong here and you are wrong here," and that's what you should do.

If there is something that appears to lie beyond the natural world as it is now imperfectly understood, we hope to eventually understand it and embrace it within the natural. As ever when we unweave a rainbow, it will not become less wonderful.

I do sometimes accuse people of ignorance, but that is not intended to be an insult. I'm ignorant of lots of things. Ignorance is something that can be remedied by education.

Faith rests squarely upon reason, but with the added component of revelation.

I think the written word is probably the best medium of communication because you have time to reflect, you have time to choose your words, to get your sentences exactly right. Whereas when you're being interviewed, say, you have to talk on the fly, you have to improvise, you can change sentences around, and they're not exactly right.

Textbooks describe DNA as a blueprint for a body. It's better seen as a recipe for making a body, because it is irreversible. But today I want to present it as something different again, and even more intriguing. The DNA in you is a coded description of ancient worlds in which your ancestors lived. DNA is the wisdom out of the old days, and I mean very old days indeed.