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.

Religion is nothing more than a useless and sometimes dangerous, evolutionary accident. Religious behavior may be a misfiring, an unfortunate byproduct of an underlying psychological propensity which in other circumstances is, or once was, useful.

I think that there are good things that happen and bad things that happen.

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.

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 end of our days. Where if you're religious and you believe in another life somehow, that means you don't live this life to the full because you think you're going to get another one. That's an awfully negative way to live a life. Being a atheist frees you up to live this life properly, happily and fully

Steve Grand is the creator of what I think is the nearest approach to artificial life so far, and his first book, Creation: Life and How to Make It, is as interesting as you would expect. But he illuminates more than just the properties of life: his originality extends to matter itself and the very nature of reality. Not since David Deutsch's The Fabric of Reality have I encountered such a compelling invitation to think everything out afresh, from the bottom up.

If you don't know anything about computers, just remember that they are machines that do exactly what you tell them but often surprise you in the result.