When I walk with a camera, I walk from shot to shot, reading the light on a calibrated meter. When I walk without a camera, my own shutter opens, and the moment's light prints on my own silver gut. When I see this second way I am above all an unscrupulous observer.

What could you say to a dying person that would not enrage by its triviality?

The mind itself is an art object. It is a Mondrian canvas onto whose homemade grids it fits its own preselected products. Our knowledge is contextual and only contextual. Ordering and invention coincide: we call their collaboration knowledge.

I used to have a cat, an old fighting tom, who would jump through the open window by my bed in the middle of the night and land on my chest. I'd half-awaken. He'd stick his skull under my nose and purr, stinking of urine and blood. Some nights he kneaded my bare chest with his front paws, powerfully, arching his back, as if sharpening his claws, or pummeling a mother for milk. And some mornings I'd wake in daylight to find my body covered with paw prints in blood; I looked as though I'd been painted with roses.

It is madness to wear ladies' straw hats and velvet hats to church; we should all be wearing crash helmets. Ushers should issue life preservers and signal flares; they should lash us to our pews. For the sleeping God may wake someday and take offense, or the waking God may draw us out to where we can never return.

The answer must be, I think, that beauty and grace are performed whether or not we will or sense them. The least we can do is try to be there.

When I first read the words 'introvert' and 'extrovert' when I was 10, I thought I was both.