The 'life unlived' with Adam Phillips and Helen Dunmore

On Start the Week Andrew Marr goes in search of a better life. The psychoanalyst Adam Phillips praises the life unlived: the people we have failed to be, and explores how far frustration is interlinked with satisfaction. While the philosopher Julian Baggini argues that Aristotle has more to tell us about how to live than Freud. The writer Helen Dunmore slips between past and present, and in her latest collection of poems stories of loss intermingle with rediscovery. And the scientist Frances Ashcroft has transformed the lives of those born with diabetes, and discusses how her breakthrough gave meaning to her own life.