The Rt Hon. Sir Oliver Letwin is the Member of Parliament for West Dorset. He the author of three books — Ethics, Emotion and the Unity of the Self, Privatising the World and The Purpose of Politics — as well as many pamphlets and articles. He has been a civil servant (serving in Margaret Thatcher’s Policy Unit), an investment banker, a Member of Parliament and a Cabinet minister (where he served first as Minister for Government Policy and then as Chancellor of the Duchy of Lancaster). He became a privy councillor in 2002 and was knighted in 2016.