In Our Time: Philosophy Folgen

Melvyn Bragg and guests discuss how, in the Enlightenment, Immanuel Kant (1724-1804) sought to define the difference between right and wrong by applying reason, looking at the intention behind actions rather than at consequences. He was inspired to find moral laws by natural philosophers such as Newton and Leibniz, who had used reason rather than emotion to analyse the world around them and had identified laws of nature. Kant argued that when someone was doing the right thing, that person was doing what was the universal law for everyone, a formulation that has been influential on moral philosophy ever since and is known as the Categorical Imperative. Arguably even more influential was one of his reformulations, echoed in The Universal Declaration of Human Rights, in which he asserted that humanity has a value of an entirely different kind from that placed on commodities. Kant argued that simply existing as a human being was valuable in itself, so that every human owed moral responsibilities to other humans and was owed responsibilities in turn.With Alison Hills Professor of Philosophy at St John's College, OxfordDavid Oderberg Professor of Philosophy at the University of ReadingandJohn Callanan Senior Lecturer in Philosophy at King's College, LondonProducer: Simon Tillotson.

Is it always better to be just than unjust? That is the central question of Plato's Republic, discussed here by Melvyn Bragg and guests. Writing in c380BC, Plato applied this question both to the individual and the city-state, considering earlier and current forms of government in Athens and potential forms, in which the ideal city might be ruled by philosophers. The Republic is arguably Plato's best known and greatest work, a dialogue between Socrates and his companions, featuring the allegory of the cave and ideas about immortality of the soul, the value of poetry to society, and democracy's vulnerability to a clever demagogue seeking tyranny.With Angie Hobbs Professor of the Public Understanding of Philosophy at the University of SheffieldMM McCabe Professor of Ancient Philosophy Emerita at King's College LondonandJames Warren Fellow of Corpus Christi College and a Reader in Ancient Philosophy at the University of Cambridge Producer: Simon Tillotson.

The 13th-century English philosopher Roger Bacon is perhaps best known for his major work the Opus Maius. Commissioned by Pope Clement IV, this extensive text covered a multitude of topics from mathematics and optics to religion and moral philosophy. He is also regarded by some as an early pioneer of the modern scientific method. Bacon's erudition was so highly regarded that he came to be known as 'Doctor Mirabilis' or 'wonderful doctor'. However, he is a man shrouded in mystery. Little is known about much of his life and he became the subject of a number of strange legends, including one in which he allegedly constructed a mechanical brazen head that would predict the future. With:Jack Cunningham Academic Coordinator for Theology at Bishop Grosseteste University, LincolnAmanda Power Associate Professor of Medieval History at the University of Oxford Elly Truitt Associate Professor of Medieval History at Bryn Mawr CollegeProducer: Victoria Brignell.