West Yorkshire is quite dramatic and beautiful, the crags and things.

I've always been a looker. Loads of people say, "I never saw that" - but that's what artists do.

Teaching people to draw is teaching people to look

It's all one to me: opera, painting, drawing, faxes.

In the end nobody knows how it's done — how art is made. It can't be explained. Optical devices are just tools. Understanding a tool doesn't explain the magic of creation. Nothing can.

Shadows sometimes people don't see shadows. The Chinese of course never paint them in pictures, oriental art never deals with shadow. But I noticed these shadows and I knew it meant it was sunny.

You had to be aware that I saw that photography was a mere episode in the history of the optical projection and when the chemicals ended, meaning the picture was fixed by chemicals, we were in a new era.