Albert Einstein develops a theory of relativity with some help from his shaving mirror.
A fragmentary look at the writer Susan Sontag through her own words and those of her peers
Alain de Botton discusses his first novel in twenty years - The Course of Love.
Professor Kathy Sykes nominates Albert Einstein.
Scientist and broadcaster Kathy Sykes chooses the iconic physicist, Albert Einstein.
The Russian-born writer whose influence is most evident in her adopted home of the USA.
Neuropsychologist Paul Broks looks at the idea of leading a good life by being selfish.
Nobel Prize-winning chemist Sir Harry Kroto chooses the philosopher Benedict Spinoza.
Melvyn Bragg and guests discuss Henri Bergson's ideas about our experience of time passing
Philip Ball tells the story of Arthur Eddington's confirmation of general relativity.
Einstein said the most joy in his life came from his violin. Brian Foster investigates.
Nick Fraser considers the role of intellectuals in relation to world events.
Theologian Giles Fraser on Wittgenstein and Blade Runner
Michael Goldfarb tells the story of Dutch philosopher Benedict Spinoza.
Munira Mirza discusses the life of the influential political philosopher Hannah Arendt.
Melvyn Bragg and guests discuss the ideas and life of Hannah Arendt, political philosopher
Melvyn Bragg and his guests discuss the work of French anthropologist Claude Levi-Strauss.
Ludwig Wittgenstein, fascinating and misunderstood thinker, is chosen by Raymond Tallis.
Melvyn Bragg and guests discuss the German-Jewish philosopher Moses Mendelssohn.
Paul Broks looks at the philosopher Ludwig Wittgenstein and the problem of 'other minds'.
Melvyn Bragg discusses the Anglo-Austrian philosopher Karl Popper.
George Steiner discusses his personal music choices with Michael Berkeley.
Philosopher, Isaiah Berlin discusses his personal music choices with Michael Berkeley.
Melvyn Bragg and guests discuss the life and times of Rosa Luxemburg, revolutionary.
Chris Anderson talks to some of the most interesting TED stage speakers.
Melvyn Bragg and guests discuss the French philosopher and social activist Simone Weil.
Eleanor Bron discusses the life of French philosopher and mystic Simone Weil.
A profile of British political theorist and historian Sir Isaiah Berlin (1909-1997).
Melvyn Bragg discusses the Dutch, Jewish and Christian Philosopher, Baruch Spinoza.