Pick up a sunflower and count the florets running into its centre, or count the spiral scales of a pine cone or a pineapple, running from its bottom up its sides to the top, and you will find an extraordinary truth: recurring numbers, ratios and proportions.

I'd been to Stourhead and was inspired by the perfect parity between architecture and art; in fact, the architecture is the art. I wrote a piece called 'Not Sculpture Park,' because most of these things become car parks for bought-in sculpture. The artists should be working with the site, not just plonking pieces down.

I was already writing about the idea of a 'multiverse' in the 1970s, though I might have called it the 'pluriverse.' How was I to know it would turn out to be the standard model? Actually, I consider myself an enlightenment fossil.

I think any cancer patient, if you dig not too deeply, they want to live.

The singular point of beautiful objects, and people, is that they are experienced not as parts, or ratios between cheekbones and chin, but as wholes. The experience of beauty is a perception, but it is one that mixes up various other sensations and makes them converge in a particular way.

The cell is a city of production centres, each part working away like mad, and it's co-ordinated. Six trillion cells in a body - you can't help but be moved.

A placebo is a phony cure that works. This is very hard for the medical profession to get their teeth around because they hate placebos, but scientifically, placebos work in about 30% of cases that are psychogenic diseases.