Anne McElvoy revisits the innovative ideas of the Scottish philosopher Adam Smith.
Alex Salmond chooses Thomas Muir, whom he describes as the father of Scottish democracy.
The 1960s saw anti-psychiatrists including RD Laing question the notion of insanity.
Mary Ann Sieghart profiles comedian and writer Armando Iannucci.
Al Murray and James King sit in for Simon and Mark with guest Armando Iannucci.
Charles Kennedy's unusual visit to an operating theatre - during the operation.
John Blashford-Snell explains why he admires fellow explorer, Dr David Livingstone.
Criminologist David Wilson tells Michael Berkeley about his life working with murderers.
Is a free market the best foundation for a fair, dynamic society?
Jim Naughtie considers Fred Goodwin, the banker now bereft of his knighthood.
Jo talks to Gerald Butler about his leading role in loud presidential actioner Olympus Has Fallen.
Felicity Evans visits 'Herriot Country' in Yorkshire, made famous by vet James 'Alf' Wight
Michael Berkeley's guest is astrophysicist Jocelyn Bell Burnell.
James Naughtie profiles Jocelyn Bell Burnell, the astrophysicist who discovered pulsars.
In a special edition, Michael Berkeley talks to Olympic rower Dame Katherine Grainger.
Ernie Rea and guests debate the legacy of David Livingstone, 200 years after his death.
Glasgow-based novelist Louise Welsh meets artist Duggie Fields.
How naturalist Joseph Hooker globally acquired species to build up the first maps of flora
Set in 15th century and 21st century France , the novel has Joan of Arc at its heart.
Britain's youngest MP, whose maiden speech has been watched 10 million times.
Lesley Curwen profiles Nicola Sturgeon, a key figure in Scotland's push for independence.
Francine Stock presents a discussion about the Glaswegian psychiatrist R D Laing.
Carole Stone discusses the charismatic guru hailed during the 60s as a great philosopher.
A key figure in the 60s, influential psychiatrist RD Laing talks to Dr Anthony Clare.
Adrian Laing has an imagined chat with his late father, pioneering psychiatrist RD Laing.
Mark Coles profiles Ruth Davidson, who has detoxified the Conservatives in Scotland.
John Wilson with singer Emeli Sande.
Mary Ann Sieghart profiles the Cabinet Secretary Sir Gus O'Donnell.
Nick Rankin explores the literary legacy of the writer John Buchan.
Peter Hennessy invites Vince Cable to reflect on his life and times.