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

Artists need a lot of collectors, all kinds of collectors, buying their art.

If you study a great work of art, you'll probably find the artist was a kind of genius. And geniuses are different to you and me. So let's have no talk of temperamental, self-absorbed and petulant babies. Being a good artist is the toughest job you could pick, and you have to be a little nuts to take it on. I love them all.

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.

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

My aim in life isn't so much the pursuit of happiness as the happiness of pursuit.

Few people in contemporary art demonstrate much curiosity. The majority spend their days blathering on, rather than trying to work out why one artist is more interesting than another, or why one picture works and another doesn't.