As I work in the afternoon on committing to paper some of my morning's thoughts, I find myself just about to close on the knotty question of whether or not I believe in God. In fact I am about to type, 'I do not believe in God', when the sky goes black as ink, there is a thunderclap and a huge crash of thunder and a downpour of epic proportions. I never do complete the sentence.

One of the difficult things of so much travelling is to say goodbye.

'Nice' means nothing. Is it someone who doesn't swear and shout? I swear and shout. 'Nice' sounds ineffectual.

I've never particularly liked travelling with large groups or being told where to go by somebody else. I prefer to find out for myself.

From my travels around the world I have seen how much damage and pollution is done by the careless disposal of waste. It is also evident that we in the West produce far more and throw away far more than the developing world, almost without thinking

I wanted to be an explorer, but gradually found the world had been explored and that there was nowhere left, really. Once they climbed Everest in 1953, when I was 10 years old, I thought, 'Well, that's pretty much it now.' But the idea of travelling and exploring and adventure was very strong.

I know that we shall meet problems along the way, but I'd far rather see for myself what's going on in the world outside, than rely on newspapers, television, politicians and religious leaders to tell me what I should be thinking.