I don't like celebrity programmes - but I do like programmes about how ideas are formed and evolve.

Once music ceases to be ephemeral - always disappearing - and becomes instead material... it leaves the condition of traditional music and enters the condition of painting. It becomes a painting, existing as material in space, not immaterial in time.

Every collaboration helps you grow. With Bowie, it's different every time. I know how to create settings, unusual aural environments. That inspires him. He's very quick.

In the 19th century, a lot of people were against outlawing child labour, because to do so would be against the very foundations of a free market economy: 'These children want to work, these people want to employ them... what is your problem? It's not as if anyone has kidnapped them...'

I don't live in the past at all; I'm always wanting to do something new. I make a point of constantly trying to forget and get things out of my mind.

Not many people bought Velvet Underground LPs, but those who did, started a band.

In the 1960s, people were trying to get away from the pop song format. Tracks were getting longer, or much, much shorter.