As well as the debates taking place at this year's Battle of Ideas, the festival also offers other attractions to keep you stimulated intellectually throughout the day.
Worth three tenors? The value of opera
"The Battle of Ideas is a weekend like no other. I found the 2011 festival immensely stimulating. It gave me a great deal to think about, and a whole new list of books to read - from Virgil to Vygotsky. On to greater battles in 2012!"
Ken Macleod, award-winning science fiction writer; author, The Restoration Game and Intrusion