Like our attitude to love, truth and goodness, we seem to be confident about knowing what beauty is - certain, even dogmatic - until we think hard about the idea, whereupon all confidence flies away.

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.

But I do believe architecture, and all art, should be content-driven. It should have something to say beyond the sensational.

Cant you see, we are in a dialogue with the universe?

A sign to me is a one-liner, a symbol is very complex and my house is a series of symbols.

Beautiful people are always with us, as evolutionary psychologists and a trip to the news-stand confirm.