The wish to disappear sends many travelers away. If you are thoroughly sick of being kept waiting at home or at work, travel is perfect: let other people wait for a change. Travel is a sort of revenge for having been put on hold, or having to leave messages on answering machines, not knowing your party's extension, being kept waiting all your working life - the homebound writer's irritants. But also being kept waiting is the human conditon.

Extensive traveling induces a feeling of encapsulation, and travel, so broadening at first, contracts the mind.

There is an intense but simple thrill in setting off in the morning on a mountain trail, knowing that everything you need is on your back. It is a confidence in having left the inessentials behind and of entering a world of natural beauty that has not been violated, where money has no value, and possessions are a dead weight. The person with the fewest possessions is the freest. Thoreau was right.

It is usually expensive and lonely to be principled.

The larger an English industry was, the more likely it was to go bankrupt, because the English were not naturally corporate people; they disliked working for others and they seemed to resent taking orders. On the whole, directors were treated absurdly well, and workers badly, and most industries were weakened by class suspicion and false economies and cynicism. But the same qualities that made English people seem stubborn and secretive made them, face to face, reliable and true to their word. I thought: The English do small things well and big things badly.

In a way, Che Guevara's fate was far worse than Simon Bolivar's. Guevara's collapse was complete: his intentions were forgotten, but his style was taken up by boutique owners (one of the fanciest clothes stores in London is called Che Guevara). There is no faster way of destroying a man or mocking his ideas than making him fashionable. That Che succeeded in influencing dress-designers was part of his tragedy.

Many aspects of the writing life have changed since I published my first book, in the 1960s. It is more corporate, more driven by profits and marketing, and generally less congenial - but my day is the same: get out of bed, procrastinate, sit down at my desk, try to write something.