Brain damage can radically change a person's character - but does that mean they are no longer themselves? Consultant neurologist Jules Montague works with people suffering dementia and brain injuries. She tells Tom Sutcliffe what happens when the brain misbehaves. Memories may fade and names disappear - but does that mean a person no longer has the same identity? Behavioural scientist Nick Chater is sceptical about whether we have an inner self at all. His book The Mind is Flat exposes what he calls the 'shocking shallowness' of our psychology, and argues that we have no mental depths to plumb. Only by understanding this can we hope to understand ourselves. The problem of self-awareness challenges psychiatrists hoping to diagnose depression, schizophrenia and other mental illnesses. Neuropsychiatrist Anthony David explores self-reflection and the stigma of mental illness in a series of lectures at King's College, London. And fear of the mind runs through Ingmar Bergman's classic film Fanny and Alexander, now staged as a play at the Old Vic, London. Stephen Beresford has adapted it, and explains how the clash between a stern stepfather and his imaginative stepson reveals our unease at the power of the mind.Producer: Hannah Sander.

Humanity is flourishing and the Enlightenment has worked, declares Steven Pinker. The Harvard psychologist has looked across health, prosperity, safety, peace and happiness, and sees signs that all are improving. He tells Andrew Marr how Enlightenment attitudes to reason and science have made this the best age in which to live. But Enlightenment values are under attack and Pinker calls for their vigorous defence.Dutch philosopher Rob Riemen also sees humanism under threat from fascism, with its politics of resentment and hatred of the life of the mind. But can reason, beauty and justice combat this threat?The neuroscientist Tali Sharot thinks reason and fear are not enough to make us change our minds. Only by understanding how the brain functions can we perfect the art of persuasion. Producer: Hannah Sander.

What would the perfect city look like? Today more people live in cities than ever before and that shapes the way we think, says sociologist Richard Sennett. He lays out a vision for a city of the future based not on ancient Greece but on new 'open' streets.Structural engineer Roma Agrawal charts the growth of cities from simple mud huts to the modern metropolis. She tells Amol Rajan about the engineering magic that holds towering city skylines in place, and recalls the eccentric engineers whose visions called our cities into being. The Chinese built a city for the dead more than two thousand years ago and now its relics are on display again. Historian Edward Burman describes how the Terracotta Army found in a necropolis shows a ruler planning for life after death. David Farr depicts the siege and destruction of Troy, the great city of the ancient world, in his vast new BBC One drama. He explains how the Trojans coped under ten long years of siege. Producer: Hannah Sander.

Andrew Marr discusses money, transformation and the obsession with growth with two leading economists: Diane Coyle and Dharshini David. Professor Coyle argues it's time to rethink the way we measure productivity, while the broadcaster Dharshini David follows the journey of a single dollar in her study of globalisation. The theatre director Anna Ledwich is more interested in the people whose lives revolve around the money markets: her latest play Dry Powder highlights their vulnerability, vision and sheer unadulterated greed. During the financial crisis of 2008, Iceland experienced proportionally the largest banking collapse by any country in economic history. The novelist Jón Kalman Stefánsson is writing a modern Icelandic family saga and explores whether the transformation of his country in the 20th century laid the foundations for its future collapse. Producer: Katy Hickman.

With millions of people on the move around the world, the novelist Mohsin Hamid has set his latest novel against the backdrop of the refugee crisis. He tells Kirsty Wark how he imagined those fleeing home passing through mysterious black doors into other parts of the world. The lawyer and sociologist Carol Bohmer examines the culture of suspicion which greets migrants when they arrive. She looks at how officials judge the line between truth and deception, and increasingly label people as liars, criminals or terrorists. While many countries are looking to fortify their borders, the former Portuguese Europe Minister Bruno Maçães believes we need to think on a super-continental scale. He travelled overland from the edges of Europe to the heart of Asia arguing for a new world order. But the theatre director Robert Hastie is more interested in what connects people to the land and their origins, as he revives Peter Gill's play The York Realist - a reflection on the rival forces of place, class and longing. Producer: Katy Hickman.

Art was power for Britain's kings and queens. In a new BBC TV series, Andrew Graham-Dixon visits the paintings amassed by King Charles I, the first great royal collector in British history. He tells Andrew Marr why after Charles was executed his royal artworks were flogged across Europe. The lost royal collection will finally be reunited this year in an exhibition at the Royal Academy of Arts. Historian Leanda de Lisle brings the Stuart monarch back to life in her biography White King. But was the art-loving king a traitor, a murderer or a martyr? And it is not only kings who use art to impress. Don Thompson meets hedge fund managers and foreign oligarchs in his study of the contemporary art scene, while artist Kelly Chorpening describes the role of Camberwell College of Art in shaping the art scene. Producer: Hannah SanderPicture credit: Anthony van Dyck (1599-1641), Charles I in Three Positions, 1635-36 Royal Collection Trust / (c) Her Majesty Queen Elizabeth II 2018, www.royalcollection.org.uk.

The prize-winning novelist Peter Carey tackles head on for the first time the legacies of colonialism in his native Australia in his latest book, A Long Way From Home. He talks to Tom Sutcliffe about the damage and loss for the Stolen Generations. The writer and broadcaster Afua Hirsch believes Britain is also a nation in denial about the past and present, and argues it's time to talk more openly about race and identity. The Dutch journalist Geert Mak once travelled the breadth of Europe to explore what it meant to be European at the end of the 20th century. He found countries struggling to understand the wrongs they had committed during the Holocaust, the Second World War and decades of dictator rule.

British women first got the vote a century ago this year. The social historian Jane Robinson tells Andrew Marr the suffrage movement is known for the actions of its militant wing and their call for 'deeds not words'. But thousands of ordinary women, known as suffragists, campaigned successfully to have their voices heard too. Political theorist Christopher Finlay asks whether violent political protest is ever justified, while the artist Peter Kennard explains how he was inspired by the protest movements in Europe in 1968 to infuse his works with politics. The writer Mary Shelley was born into a politically radical family, with an anarchist father and her mother the feminist Mary Wollstonecraft. On the 200th anniversary of her novel Frankenstein, the poet Fiona Sampson looks back at Shelley's radical life.Producer: Katy Hickman.

The former President of the Supreme Court, Lord Neuberger, questions how senior judges became cast as 'enemies of the people' last year. He tells Andrew Marr how the judiciary has grown more powerful and ready to challenge the government over the last half century - while professor of politics Tim Bale explores whether parliament has at the same time become weaker. Cicero was proscribed as an enemy of the people in the 1st century BC. Robert Harris's Cicero trilogy has now been dramatized for the stage, and is a timely reminder of earlier collisions of politics, the law and the people. Barbara Hosking understands the workings of politics and the media, having served under two Prime Ministers - Harold Wilson and Edward Heath - and pioneered breakfast television. She reflects back on her life travelling from a Cornish village to the corridors of power. Producer: Katy Hickman.

A mysterious doll's house is at the centre of Jessie Burton's novel The Miniaturist, now dramatised for television. Burton tells Tom Sutcliffe about the claustrophobic world she created amidst the wealthy merchant traders of 17th century Holland. The economist Jonathan Haskel points to the quiet revolution that has taken place since then, as developed countries now invest more in intangible assets like design and software, than in tangible goods like machinery and computers. He asks what impact this has had on economic inequality and low productivity. And then two objects that tell stories far beyond themselves: the umbrella and the Ferrari. Marion Rankine looks at the humble brolly, now a simple object to protect you from the rain, but once a powerful symbol of class and power. And 70 year after Enzo Ferrari brought out his first car, the guest curator at the Design Museum Andrew Nahum looks back at the creation of an iconic brand. Producer: Katy HickmanPicture courtesy of Ferrari.