The reason that chefs become chefs is that they're not allowed into rooms with windows.

It's a great historical joke that when the Spanish met the Aztecs, it was a blind date made in serve-you-right heaven. At the time, they were the two most unpleasant cultures in the entire world, and richly deserved each other. Still, the story of how stout Cortes blustered, bullied and bludgeoned his way to collapsing an entire empire with a handful of contagious hoodlums is astonishing.

The reason that chefs become chefs is that they're not allowed into rooms with windows.

I walk up a dune to a beach and look out to sea, but it's 100km away. The ships lie askew in their dry beds, at anchor for ever. Today is my son's birthday. Thousands of miles from here, his healthy lungs are blowing out candles. I should be there but I'm here with another boy, who puts his face close to mine and laughs. I smile back but realise he can't see it, because I'm wearing an antiseptic muzzles to protect me from his breath.

If the world were to end tomorrow and we could choose to save only one thing as the explanation and memorial to who we were, then we couldn't do better than the Natural History Museum, although it wouldn't contain a single human. The systematic Linnean order, the vast inquisitiveness and range of collated knowledge and beauty would tell all that is the best of us.

You either get the point of Africa or you don't. What draws me back year after year is that it's like seeing the world with the lid off.

Like most parents, I've been stumped by homework, the big questions, such as: 'What is the point of geography - the pilot always knows where we are going?'. Answer: 'If you didn't know any geography, people would think you were an American, and you wouldn't be able to put them right because you wouldn't know where they live.'