John Tusa interviewing Anish Kapoor:

It's said sometimes, and I think it's always interesting when people do say this, that oh Anish Kapoor's very ambitious. Now that can say more about the person who said it than about the person about whom it is being said, but still, how ambitious are you?

I am very ambitious.

To be what?

To challenge myself. To make art that I've not made before. As I was trying to say earlier, the modern world has a huge range of formal possibilities, whether one's talking about spaces to show in, or materials to make work with. I'm ambitious to try and occupy if you like as much of that territory as I can allow myself to. So what I see this as is, it's me battling against my own limitations. The image that I've conjured here of Picasso liberating himself in order to be able to go to a fractured world or a whole world is one, is a battle that he fought with himself. At least that's the way I see it. And I think there is something about opening one's heart to the possibilities that one doesn't even truly or readily know are there - emotional possibilities as much as anything else.

BBC Interview with Anish Kapoor