Never ride a bike with the brakes on. If something is proving too difficult, give up and do something else. Try to live without resort to per­severance.

I would hope that nothing that I write would ever seem earnest because I subscribe absolutely to Franz Nietzsche's claim when he says, "Ah, earnestness, the sure sign of a slow mind." Earnest people are always a bit on the thick side in my experience.

Have more than one idea on the go at any one time. If it's a choice between writing a book and doing nothing I will always choose the latter. It's only if I have an idea for two books that I choose one rather than the other. I ­always have to feel that I'm bunking off from something.

I would agree on the aging thing. Because, at a certain point, once you start noticing it, it is your subject. And I know young that people, when they get to 30, say, "Oh, I'm so old." But actually, around 50, you do become conscious of it.

I think I do have a sort of terrible propensity for boredom and for being bored, even though I am absolutely of the opinion that one shouldn't be bored and that there is no excuse for it and that it is a personal failing.

Nicholson Baker talks about the way in which the most successful nonfiction books are those that can be boiled down into an argument so that everybody can wade in with an opinion without having to undergo the inconvenience of having to read the book itself. The more you can condense it, the better.

Quite often, ambition operates on a level of irritation. Not even jealousy, just irritation.