I sat on a toilet watching the water run thinking what an odd thing tourism is. You fly off to a strange land, eagerly abandoning all the comforts of home and then expend vast quantities of time and money in a largely futile effort to recapture the comforts you wouldn’t have lost if you hadn’t left home in the first place.

I don't want to go and start trying to make jokes in places like India, Tanzania or Iraq. Afghanistan is not a funny place.

Every atom you possess has almost certainly passed through several stars and been part of millions of organisms on its way to becoming you. We are each so atomically numberous and so vigorously recycled at death that a significant number of our atoms-up to a billion for each of us, it has been suggested-probably once belonged to Shakespeare. A billion more each came from Buddha and Genghis Khan and Beethoven, and any other historical figure you care to name.

Out of the thirty thousand types of edible plants thought to exist on Earth, just eleven—corn, rice, wheat, potatoes, cassava, sorghum, millet, beans, barley, rye, and oats—account for 93 percent of all that humans eat, and every one of them was first cultivated by our Neolithic ancestors.

I can wear a baseball cap; I am entitled to wear a baseball cap. I am genetically pre-disposed to wear a baseball cap, whereas most English people look wrong in a baseball cap.

99.99 percent of all species that have ever lived are no longer with us.

Everything seems to be designed for the benefit of the automobile and not the benefit of the human being.