Melvyn Bragg and guests discuss the mind/body problem in philosophy. At the start of René Descartes' Sixth Meditation he writes: "there is a great difference between mind and body, inasmuch as body is by nature always divisible, and mind is entirely indivisible. For when I consider the mind, or myself in so far as I am merely a thinking thing, I am unable to distinguish many parts within myself; I understand myself to be something quite single and complete. Although the whole mind seems to be united to the whole body, I recognize that if a foot or an arm or any other part of the body is cut off nothing has thereby been taken away from the mind".This thinking is the basis of what's known as 'Cartesian dualism', Descartes' attempt to address one of the central questions in philosophy, the mind/body problem: is the mind part of the body, or the body part of the mind? If they are distinct, then how do they interact? And which of the two is in charge?With Anthony Grayling, Reader in Philosophy at Birkbeck, University of London; Julian Baggini, editor of The Philosophers' Magazine; Sue James, Professor of Philosophy at Birkbeck, University of London.

Melvyn Bragg and guests discuss the political philosopher Niccolo Machiavelli. In The Prince, Machiavelli's great manual of power, he wrote, "since men love as they themselves determine but fear as their ruler determines, a wise prince must rely upon what he and not others can control". He also advised, "One must be a fox in order to recognise traps, and a lion to frighten off wolves. Those who simply act like lions are stupid. So it follows that a prudent ruler cannot, and must not, honour his word when it places him at a disadvantage".What times was Machiavelli living through to take such a brutal perspective on power? How did he gain the experience to provide this advice to rulers? And was he really the amoral, or even evil figure that so many have liked to paint him?With Quentin Skinner, Regius Professor of History at the University of Cambridge; Evelyn Welch, Professor of Renaissance Studies at Queen Mary, University of London; Lisa Jardine, Director of the Centre for Editing Lives and Letters at Queen Mary, University of London.

Melvyn Bragg and guests discuss the extraordinary mind of the psychiatrist Carl Gustav Jung. In 1907 Sigmund Freud met a young man and fell into a conversation that is reputed to have lasted for 13 hours. That man was the Swiss psychiatrist Carl Gustav Jung. Freud is celebrated as the great pioneer of the 20th century mind, but the idea that personality types can be 'introverted' or 'extroverted', that certain archetypal images and stories repeat themselves constantly across the collective history of mankind, and that personal individuation is the goal of life, all belong to Jung: "Your vision will become clear only when you look into your heart... Who looks outside, dreams. Who looks inside, awakens", he declared. And he also said "Show me a sane man and I will cure him for you".Who was Jung? What is the essence and influence of his thought? And how did he become such a controversial and, for many, such a beguiling figure?With Brett Kahr, Senior Clinical Research Fellow in Psychotherapy and Mental Health at the Centre for Child Mental Health in London and a practising Freudian; Ronald Hayman, writer and biographer of Jung; Andrew Samuels, Professor of Analytical Psychology at the University of Essex and a Jungian analyst in clinical practice.

Melvyn Bragg and guests discusses rhetoric. Gorgias, the great sophist philosopher and master of rhetoric said, "Speech is a powerful lord that with the smallest and most invisible body accomplished most godlike works. It can banish fear and remove grief, and instil pleasure and enhance pity. Divine sweetness transmitted through words is inductive of pleasure and reductive of pain". But for Plato it was a vice, and those like Gorgias who taught rhetoric were teaching the skills of lying in return for money and were a great danger. He warned "this device - be it which it may, art or mere artless empirical knack - must not, if we can help it, strike root in our society".But strike root it did, and there is a rich tradition of philosophers and theologians who have attempted to make sense of it.How did the art of rhetoric develop? What part has it played in philosophy and literature? And does it still deserve the health warning applied so unambiguously by Plato?With Angie Hobbs, Lecturer in Philosophy at the University of Warwick; Thomas Healy, Professor of Renaissance Studies at Birkbeck College, University of London; Ceri Sullivan, Senior Lecturer in English at the University of Wales, Bangor.

Melvyn Bragg and guests discuss the Han Synthesis philosophies of China. In The Analects the Chinese sage Confucius says of statecraft: "He who exercises government by means of his virtue may be compared to the north polar star, which keeps its place and all the stars turn to it".Confucianism had been all but outlawed under the Chin Emperor, but in 206 BC the Han dynasty came to power and held sway for over 400 years. They brought Confucian thought to the heart of government, his favourite books became set texts for the world's first civil service exam and in a grand intellectual project 'The Great Tao' was combined with 'The Five Phases' and with the Yin and the Yang.Who were the Han? How did they bring these strands of thought together into the great founding moment of Chinese culture? And what drove them to their extraordinary intellectual task?With Christopher Cullen, Director of the Needham Research Institute; Carol Michaelson, Assistant Keeper of Chinese Art in the Department of Asia at the British Museum; Roel Sterckx, Lecturer in Chinese Studies at the University of Cambridge.

Melvyn Bragg and guests discuss Jean-Paul Sartre, the French novelist, playwright, and philosopher who became the king of intellectual Paris and a focus of post war politics and morals. Sartre's own life was coloured by jazz, affairs, Simone de Beauvoir and the intellectual camaraderie of Left Bank cafes. He maintained an extraordinary output of plays, novels, biographies, and philosophical treatises as well as membership of the communist party and a role in many political controversies. He produced some wonderful statements: "my heart is on the left, like everyone else's", and "a human person is what he is not, not what he is", and, most famously "we are condemned to be free". Melvyn Bragg and guests discuss how Sartre's novels and plays express his ideas and what light Sartre's life brings to bear on his philosophy and his philosphy on his life. With Jonathan Rée, philosopher and historia; Benedict O'Donohoe, Principal Lecturer in French at the University of the West of England and Secretary of the UK Society for Sartrean Studies; Christina Howells, Professor of French at the University of Oxford and a Fellow of Wadham College.

Melvyn Bragg and guests discuss the idea of Politeness. A new idea that stalked the land at the start of the eighteenth century in Britain, Politeness soon acquired a philosophy, a literature and even a society devoted to its thrall. It may seem to represent the very opposite now, but at that time, when Queen Anne was on the throne and The Spectator was in the coffee houses, politeness was part of a radical social revolution.How did the idea of politeness challenge the accepted norms of behaviour? How did a notion of how to behave affect the great wealth of eighteenth century culture? With Amanda Vickery, Reader in History at Royal Holloway, University of London; David Wootton, Professor of History at the University of York; John Mullan, Senior Lecturer in English at University College London.

Melvyn Bragg and guests discuss Empiricism, England’s greatest contribution to philosophy. At the end of the seventeenth century the philosopher John Locke wrote in his Essay Concerning Human Understanding: “All ideas come from sensation or reflection. Let us then suppose the mind to be, as we say, white paper, void of all characters, without any ideas:- How comes it to be furnished? Whence comes it by that vast store which the busy and boundless fancy of man has painted on it with an almost endless variety? Whence has it all the materials of reason and knowledge? To this I answer, in one word, from EXPERIENCE.”It was a body of ideas that for Voltaire, and for Kant after him, defined the English attitude to thought; a straight talking pragmatic philosophy that was hand in glove with a practical people.How was the philosophy of empiricism developed in the seventeenth and eighteenth centuries? And what effect did this emphasis on experience have on culture and literature in Britain?With Judith Hawley, Senior Lecturer in English at Royal Holloway, University of London; Murray Pittock, Professor of Scottish and Romantic Literature at the University of Manchester; Jonathan Rée, philosopher and author of Philosophy and its Past.

Melvyn Bragg and guests discuss what defines a hero and what place they had in classical society. On the fields of Troy a fallen soldier pleaded with Achilles, the great hero of the Greeks, to spare his life. According to Homer, Achilles replied, “Do you not see what a man I am, how huge, how splendid.And born of a great father and the mother who bore me immortal?Yet even I have also my death and strong destiny, And there shall be a dawn or an afternoon or a noontime,When some man in the fighting will take the life from me alsoEither with a spear cast or an arrow flown from the bow string”.With that, he killed him. Heroes have special attributes, but not necessarily humility or compassion. How did the Greeks define their heroes? What place did the hero have in classical society and what do modern ideas of heroism owe to the heroes of the golden age?With Angie Hobbs, Lecturer in Philosophy at the University of Warwick and author of Plato and the Hero: Courage, Manliness and the Impersonal Good; Anthony Grayling, Reader in Philosophy at Birkbeck College, University of London; Paul Cartledge, Professor of Greek History at the University of Cambridge.

Melvyn Bragg and guests discuss the life, work and legacy of Ludwig Wittgenstein. There is little doubt that he was a towering figure of the twentieth century; on his return to Cambridge in 1929 Maynard Keynes wrote, “Well, God has arrived. I met him on the 5:15 train”.Wittgenstein is credited with being the greatest philosopher of the modern age, a thinker who left not one but two philosophies for his descendents to argue over: The early Wittgenstein said, “the limits of my mind mean the limits of my world”; the later Wittgenstein replied, “If God looked into our minds he would not have been able to see there whom we were speaking of”. Language was at the heart of both. Wittgenstein stated that his purpose was to finally free humanity from the pointless and neurotic philosophical questing that plagues us all. As he put it, “To show the fly the way out of the fly bottle”.How did he think language could solve all the problems of philosophy? How have his ideas influenced contemporary culture? And could his thought ever achieve the release for us that he hoped it would?With Ray Monk, Professor of Philosophy at the University of Southampton and author of Ludwig Wittgenstein: The Duty of Genius; Barry Smith, Lecturer in Philosophy at Birkbeck, University of London; Marie McGinn, Senior Lecturer in Philosophy at the University of York.