Professor of philosophy, Emily Thomas, is today's guest. Our discussion includes the importance of cannibalism for John Locke's theories, an eighteenth century pile-on involving Mary Wollstonecraft's life and Emily's thoughts on her recent trip to Malawi. The photo of Malawian rock art is shown cour… Professor of philosophy, Emily Thomas, is today's guest. Our discussion includes the importance of cannibalism for John Locke's theories, an eighteenth century pile-on involving Mary Wollstonecraft's life and Emily's thoughts on her recent trip to Malawi. The photo of Malawian rock art is shown courtesy of UNESCO more

The American novelist and travel writer Paul Theroux discusses his latest book, Burma Sahib — and describes a life spent on the move from Myanmar, to Malawi, to Mexico. He unpicks the evolution of travel writing, his friendship with Bruce Chatwin, and how age has changed his work.