I like living, breathing better than working...my art is that of living. Each second, each breath is a work which is inscribed nowhere, which is neither visual nor cerebral, it's a sort of constant euphoria.

It's the viewer that makes the work.

I believe that a picture, a work of art, lives and dies just as we do.

Since a three-dimensional object casts a two-dimensional shadow, we should be able to imagine the unknown four-dimensional object whose shadow we are. I for my part am fascinated by the search for a one-dimensional object that casts no shadow at all.

The life of a chess master is much more difficult than that of an artist - much more depressing. An artist knows that someday there'll be recognition and monetary reward, but for the chess master there is little public recognition and absolutely no hope of supporting himself by his endeavors. If Bobby Fischer came to me for advice, I certainly would not discourage him - as if anyone could - but I would try to make it positively clear that he will never have any money from chess, live a monk-like existence and know more rejection than any artist ever has, struggling to be known and accepted.

The curious thing about that moustache and goatee is that when you look at the Mona Lisa it becomes a man. It is not a woman disguised as a man; it is a real man, and that was my discovery, without realising it at the time.

Living is more a question of what one spends than what one makes.