From the BBC Radio 4 series about life's big questions - http://www.bbc.co.uk/historyofideas An eye for an eye and a tooth for a tooth might sound like brutal retribution but its roots were in encouraging a sense of proportion. Narrated by Stephen Fry. Scripted by Nigel Warburton. This project is from the BBC in partnership with The Open University, the animations were created by Cognitive