Artists are valuable to public discussion: They show the correlation between doing and thinking.

For the sake of sanity, the brain and the eyes keep things simple. But take away the sense of sight and suddenly things are not so simple.

Having an experience is taking part in the world. Taking part in the world is really about sharing responsibility.

I think an artist has the potential to investigate both form and content within one activity, to show that there can be coherence between form and values in our society, as in thinking about a city and building one.

I see the artist as a participant, a co-producer of reality. I do not see the artist as a person who sits at a distance and evaluates.

By bringing Little Sun to Tate Modern and the London Olympics, I hope to realise an art project for those who typically have no access to global events of this scale.

Photographs have a relevance for things that cannot be said.