I had been doing wall drawings, but they were always black and white. Then in 1993 I painted all the walls of a room to make an installation and as soon as I saw the colour on the walls, it changed my whole life.

I don't like the idea of nationalism, but on the other hand, I do see that there is a difference between British art, German art and Chinese art. This is because of the history, because each country has different history and each country reads and teaches that history differently.

You can't force yourself to be something you are not.

When I look at the objects that I draw, it seems to me so obvious about the contemporary world - these are our world.

The art world, of all worlds, has room for everyone.

In a sense [Joseph] Albers was an authoritarian teacher. He had rules about most things and very definite ideas.

I think that the exchange is very important. Before I did the exhibition in Shanghai, I was a judge for the John Moores Painting Prize and that was very interesting for me, because some of the judges are Chinese and some are British, and we look at the work together. It was fascinating that most of the time we were in complete agreement, but some of the time we were not. People send their works from all over China. For a foreigner, this gave me a very good picture about what is happening in China and its art today.