The first exhibition that I used bright colours in painting the room was at a gallery in Paris, and there were seven rooms in the gallery. It was very nice gallery, not very big rooms, around the courtyard, it was a very French space. So I painted each room in different colour. When people came to the exhibition, I saw they came with a smile. Everybody smiles - this is something I never saw in my work before.

The identifying personal association with objects, which are not personal, is an important modern experience - our real association, the strands of our feelings about the objects that surround us. It's also because they are so familiar, we don't think of them as important in the world, but actually they are the world. We are living in a very material world.

In the studio, it took me a long time to work out how to make paintings that had the intensity that I was able to create by painting whole rooms. There is a very limited number of colours but there are many variations. I decided to use the purest palette that I could.

In the late 70's I started to make drawings of the ordinary objects I had been using in my work. Initially I wanted them to be ready-made drawings of the kind of common objects I had always used in my work. I was surprised to discover I couldn't find the simple, neutral drawings I had assumed existed, so I started to make them myself.

Often people do not properly value things that they are good at naturally because they find them too easy. That is very problematic.

I think from an artist's point of view, everything in art, in fact everything in the world is available as material.

When I told people that I was going to paint the big room magenta, many people thought that I was crazy.