Ai Weiwei: ‘In the art world, everyone talks about money. It’s poisonous; you’re only worth as much as your work’
China’s most famous artist lives quietly in Portugal. But exile is hard, even if it’s golden. On the occasion of his latest exhibition at the MUSAC, a contemporary art museum in the city of León, Spain, he shows EL PAÍS the first house he’s ever bought, at the age of 67