I started going to exhibitions in Switzerland when I was 10 or 11. As a schoolboy, I would go every afternoon to see the long, thin figures of Giacometti.

I still remember my first Giacometti exhibition, and going back to the museum every day, whenever I could, to look again and again at these long, thin stick figures, so beautiful, so graceful. That, I think, was the moment I became really obsessed by art.

Exhibitions usually are not collected; they disperse after they take place.

One of my favourite exhibitions is called 'Do It,' which I co-curated with the artists Christian Boltanski and Bertrand Lavier 21 years ago.

Exhibitions are kind of ephemeral moments, sometimes magic moments, and when they're gone, they're gone.

I'm trying to expand the notion of curating. Exhibitions need not only take place in galleries, need not only involve displaying objects. Art can appear where we expect it least.