5. Stuart Hampshire

One of Sigmund Freud's most important contributions to psychology was the notion of an unconscious mind which can guide our behaviour in curious and unexpected ways. This has not only given rise to a whole new branch of psychiatric treatment - psychoanalysis - but has transformed the way in which people think about .themselves and their actions. Stuart Hampshire, Warden of Wadham College, Oxford, discusses the significance of Freud's 'discovery'.