I had to drive to Minneapolis once, and went on a back road just to see the country. But there was nothing to see. It's just flat and hot, and full of corn and soybeans and hogs. Every once in a while you come across a farm or some dead little town where the liveliest thing is the flies.

Every atom you possess has almost certainly passed through several stars and been part of millions of organisms on its way to becoming you. We are each so atomically numberous and so vigorously recycled at death that a significant number of our atoms-up to a billion for each of us, it has been suggested-probably once belonged to Shakespeare. A billion more each came from Buddha and Genghis Khan and Beethoven, and any other historical figure you care to name.

Columbus real achievement was managing to cross the ocean successfully in both directions. Though an accomplished enough mariner, he was not terribly good at a great deal else, especially geography, the skill that would seem most vital in an explorer.

To me, the greatest invention of my lifetime is the laptop computer and the fact that I can be working on a book and be in an airport lounge, in a hotel room, and continue working; I fire up my laptop, and I'm in exactly the same place I was when I left home - that, to me, is a miracle.

In France, a chemist named Pilatre de Rozier tested the flammability of hydrogen by gulping a mouthful and blowing across an open flame, proving at a stroke that hydrogen is indeed explosively combustible and that eyebrows are not necessarily a permanent feature of one's face.

I come from Des Moines. Someone had to.

America is a great disappointment to me. As I said in one of my books, other societies create civilisations; we build shopping malls.