The collages I never wanted to sell. I thought it was a very private thing, so I kept the collages. Then, in the end, I had a big collage in the Pinault Collection in Venice and the director of the [Centre] Pompidou said, "Did you make big collages like this in the '60s?" I said yes, so he came to the studio and said, "Let's make an exhibition in the Pompidou."

I lived on Fulton Street in an enormous studio - I needed a bicycle to get to the toilet, about half a mile between two streets - next to Wall Street.

I'd love to be considered a post-pop artist, but I love to have five or six different styles in every painting, just for the pleasure of the eye.

I have been very lucky, I have won prizes and I've even won the lottery.

There was so much going on. I remember a very interesting dinner in the studio of [Robert] Rauschenberg. He had convinced Sidney Janis, Leo Castelli, and a third big gallery man to serve us, the artists, at the table. So they were dressed up as waiters, we were sitting at the table, and they were only allowed to sit down at the end of the table for the cognac. This is not possible now.

Every five, six, seven, eight, 10 years I do a raisonné. When it's printed in the book, it's finished.

[Some people] put their work on the internet and check every day how many people look, how many people made contact, but I don't have internet, I don't have a hand-phone, I don't have fax, I don't have email. I just have old-fashioned telephone and letters.