Book tours are really kind of fun. You get to stay in nice hotels, you are driven everywhere in big silver cars, you are treated as if you are much more important than you are, you can eat steak three times a day at someone else's expense, and you get to talk endlessly about yourself for weeks at a stretch.

I had spent the whole of my savings ... on a suit for the wedding - a remarkable piece of apparel with lapels that had been modelled on the tail fins of a 1957 Coupe de Ville and trousers so copiously flared that when I walked you didn't see my legs move.

There are three stages in scientific discovery. First, people deny that it is true, then they deny that it is important; finally they credit the wrong person.

Clearly, some time ago makers and consumers of American junk food passed jointly through some kind of sensibility barrier in the endless quest for new taste sensations. Now they are a little like those desperate junkies who have tried every known drug and are finally reduced to mainlining toilet bowl cleanser in an effort to get still higher.

In terms of adaptability, humans are pretty amazingly useless.

There is the odd exception, like Albert Einstein, but as a breed, scientists tend not be very good at presenting themselves.

Think of a single problem confronting the world today. Disease, poverty, global warming... If the problem is going to be solved, it is science that is going to solve it. Scientists tend to be unappreciated in the world at large, but you can hardly overstate the importance of the work they do. If anyone ever cures cancer, it will be a guy with a science degree. Or a woman with a science degree.