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.

'Understanding' art is like having a sense of humour - if you don't have one, no amount of explanation is going to make you laugh.

Today, in British education, we don't have that kind of freedom. Now there are many regulations, many rules, and bureaucracies in the education system. So, it doesn't have the flexibility that it had in the '60s, '70s, '80s.

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.

Usually when I go to the Summer Exhibition, I think every room is too much the same, and I loose my capacity to look at individual works.

The complexity of the language of images is disguised by the ease and rapidity with which we read them. I've tried to make work that is as transparent and simple as possible. No matter how much I strip away the result is always more complex to me than I expect.

I thought the objects we value least because they were ubiquitous were actually the most extraordinary.