EDINBURGH, SCOTLAND - AUGUST 18:  Alain de Botton, author and philosopher, appears at a photocall prior to participating in the Edinburgh International Book Festival 2012 on August 18, 2012 in Edinburgh, Scotland. Edinburgh is the world's first UNESCO City of Literature, and this year approximately 800 authors will participate in the literary festival.  (Photo by Jeremy Sutton-Hibbert/Getty Images)