Historian Justin Champion on Toleration

Professor Justin Champion examines Locke's Letter on Toleration.

• 11 mins

Economist Kate Barker on the Free Market

Is a free market the best foundation for a fair, dynamic society?

• 11 mins

Philosopher Angie Hobbs on Plato's Philosopher Kings

Angie Hobbs asks if the ideal state would be run by philosophers not politicians.

• 11 mins

Philosopher Timothy Secret on Ancestor Worship

Timothy Secret on Confucius. To live well together we must first consider the dead.

• 11 mins

What Is Love?

Melvyn Bragg and guests discuss the history of ideas around love.

• 11 mins

Classicist Edith Hall on Aristophanes in Plato

Classicist Edith Hall on Aristophanes's explanation of love.

• 11 mins

Theologian Giles Fraser on Altruism

Giles Fraser discusses gene theory versus altruism with Tom Stoppard and Armand Leroi.

• 11 mins

Psychotherapist Mark Vernon on Freud

What is love? Psychotherapist Mark Vernon looks at Freud's ideas on the Greek god Eros.

• 11 mins

Writer Lisa Appignanesi on the Love of Children

How should we love our children? Philosopher Jean-Jacques Rousseau had some great ideas.

• 11 mins

How Can I Know Anything at All?

Melvyn Bragg and guests discuss how we can know anything at all.

• 11 mins

Lawyer Harry Potter on Eyewitness Testimony

Barrister Harry Potter on whether we can believe our eyes.

• 11 mins

Physicist Tara Shears on Falsification

How can we separate real science from mumbo jumbo? Physicist Tara Shears investigates.

• 11 mins

Philosopher Clare Carlisle on Reality and Perception

Clare Carlisle grapples with Bishop Berkley's idea that objects only exist in our minds.

• 11 mins

Neuropsychologist Paul Broks on Wittgenstein

Paul Broks looks at the philosopher Ludwig Wittgenstein and the problem of 'other minds'.

• 11 mins