Summary: Rana Mitter talks to the Australian writer Peter Carey about his new novel The Chemistry of Tears. Europe's museums are increasingly turning to countries such as China, Saudi Arabia and Qatar for help in funding exhibitions. Does this form of cultural diplomacy force curators to compromise their content?Martin Roth, Director of the Victoria and Albert Museum debates with Observer columnist Nick Cohen. And what can the language of an obscure Brazilian tribe called the Pirahã tell us about the evolution of our own? Linguist Daniel Everett explores how different societies have produced dramatically different languages.
