“When will The Art Newspaper and the rest of the media and political world get it into their heads that no one owns Matisse and Picasso, or for that matter Botticelli or Caravaggio, any more than they own Shakespeare, Chekhov, Beethoven or Shostakovich? Issues of copyright regarding writers and musicians do at least have statutes of limitation placed upon them; it is more than high time that similar limitations were placed on art and material culture.”