My favourite fellow of the Royal Society is the Reverend Thomas Bayes, an obscure 18th-century Kent clergyman and a brilliant mathematician who devised a complex equation known as the Bayes theorem, which can be used to work out probability distributions. It had no practical application in his lifetime, but today, thanks to computers, is routinely used in the modelling of climate change, astrophysics and stock-market analysis.

An awful lot of England is slowly eroding, in ways that I find really distressing, and an awful lot of it is the hedgerows... We're reaching the point where a lot of the English countryside looks just like Iowa - just kind of open space.

I don't know whether I'm misanthropic. It seems to me I'm constantly disappointed. I'm very easily disappointed.

Suddenly, in the space of a moment, I realized what it was that I loved about Britain - which is to say, all of it. Every last bit of it, good and bad - old churches, country lanes, people saying 'Mustn't grumble,' and 'I'm terribly sorry but,' people apologizing to ME when I conk them with a careless elbow, milk in bottles, beans on toast, haymaking in June, seaside piers, Ordnance Survey maps, tea and crumpets, summer showers and foggy winter evenings - every bit of it.

I turned to my own bunk and examined it with a kind of appalled fascination. If the mattress stains were anything to go by, a previous user had not so much suffered from incontinence as rejoiced in it. He had evidently included the pillow in his celebrations.

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

To my mind, the greatest reward and luxury of travel is to be able to experience everyday things as if for the first time, to be in a position in which almost nothing is so familiar it is taken for granted.