Ai Weiwei Speaks: with Hans Ulrich Obrist

'If artists betray the social conscience and the basic principles of being human, where does art stand then?'

Ai Weiwei - artist, architect, curator, publisher, poet and urbanist - extended the notion of art and is one of the world's most significant creative and cultural figures. In this series of interviews, conducted over several years with the curator Hans Ulrich Obrist, he discusses the many dimensions of his artistic life, ranging over subjects including ceramics, blogging, natu…