谁害怕观念艺术？ Who's Afraid of Conceptual Art

　　Dr James Fox has never really got conceptual art. And he's not alone. Conceptual art has been treated with suspicion and incredulity by virtually everyone outside the art world for nearly a hundred years. Ever since Marcel Duchamp first displayed a signed urinal and claimed it was art in 1917. So was he taking the piss? Or was he on to something, creating a whole new approach t...