There are no rules about investment. Sharks can be good. Artist's dung can be good. Oil on canvas can be good.

Being a good artist is the toughest job you could pick, and you have to be a little nuts to take it on.

Lots of ambitious work by young artists ends up in a dumpster after its warehouse debut. So an unknown artist's big glass vitrine holding a rotting cow's head covered by maggots and swarms of buzzing flies may be pretty unsellable. Until the artist becomes a star. Then he can sell anything he touches .

I have never cared enough about money to worry about spending it, and have been fortunate to make enough to be spoiled rotten.

I primarily buy art to show it off.

By and large, talent is in such short supply that mediocrity can be taken for brilliance rather more than genius can go undiscovered.

If I stop being on good behaviour for a moment, my dark little secret is that I don't actually believe many people in the art world have much feeling for art and simply cannot tell a good artist from a weak one, until the artist has enjoyed the validation of others - a received pronunciation.