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

There is a complete difference between art and the art market. Prices are high now for the simple reason that there are people are willing to pay them. The market dominates the art world today because at the moment collectors call the shots. Like everything else that won't last forever.

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.

Sometimes we look at a work of art and we immediately think that it is German art, but with some we don't, it's not so obvious.

My idea for every exhibition is we should be able to see every individual work without being distracted by the others, and it doesn't matter if it's quite crowded.

Whatever happens to the art world, art will go on regardless. As for obscurity, it looms just over the horizon beckoning us all. Why worry.

The person you admire was true to himself. You can only truly honour him by being true to yourself.