The painting is always done very much with [the model's] co-operation. The problem with painting a nude, of course, is that it deepens the transaction. You can scrap a painting of someone's face and it imperils the sitter's self-esteem less than scrapping a painting of the whole naked body.

The aura given out by a person or object is as much a part of them as their flesh. The effect that they make in space is as bound up with them as might be their colour or smell ... Therefore the painter must be as concerned with the air surrounding his subject as with the subject itself. It is through observation and perception of atmosphere that he can register the feeling that he wishes his painting to give out.

Full, saturated colours have an emotional significance I want to avoid.

What do I ask of a painting? I ask it to astonish, disturb, seduce, convince.

I remember Francis Bacon would say that he felt he was giving art what he thought it previously lacked. With me, it's what Yeats called the fascination with what's difficult. I'm only trying to do what I can't do.

I paint people, not because of what they are like, not exactly in spite of what they are like, but how they happen to be.

My work is purely autobiographical... It is about myself and my surroundings.