Professor Michael Sandel delivers four lectures about the prospects of a new politics of the common good. The series is presented and chaired by Sue Lawley.

Sandel considers the role of moral argument in politics. He believes that it is often not possible for government to be neutral on moral questions and calls for a more engaged civic debate about issues such as commercial surrogacy and same-sex marriage.

Michael Sandel, Harvard Professor of Government, delivers four lectures about the prospects of a new politics of the common good. The series is presented and chaired by Sue Lawley.

Sandel considers the expansion of markets and how we determine their moral limits. Should immigrants, for example, pay for citizenship? Should we pay schoolchildren for good test results, or even to read a book? He calls for a more robust public debate about such questions, as part of a 'new citizenship'.

Chinese Vistas: Jonathan Spence lectures about China.

Recorded at Lord's cricket ground.

Spence discusses how Chinese ideas of sport and athleticism have slowly evolved over the centuries, from languorous courtship and formalised martial arts to the demanding arenas of team sports and the ultimate Olympic challenges that China will controversially host in August.

Chinese Vistas: Jonathan Spence lectures about China.

Recorded at The Asia Society in New York.

Spence explores the two centuries in which the United States gradually moved from its position as a dominant beacon of freedom and democracy for China, to becoming a more demanding global rival during and since World War II. Is America right to be wary of the emerging superpower or can the two economic and military giants co-exist happily?

Jonathan Spence lectures about China.

Spence examines China's relations with the United Kingdom through three centuries of trade, warfare, unequal treaties and missionary endeavours that shaped their mutual perceptions.

Chinese Vistas: In a lecture recorded at the British Library in London, Jonathan Spence reflects on China's most enduring thinker, Confucius. Who was this man, what did he believe in, and what contemporary relevance does his message have, nearly 2,500 years after his death? The Confucian message has survived countless attacks and is being recycled by the Chinese Communist leadership today.

Jeffrey Sachs delivers the last of five lectures. He calls for a new Enlightenment to help make globalisation work for all and lays out a blueprint for global co-operation.

Jeffrey Sachs delivers the fourth of five lectures. He considers the challenges of extreme poverty and the worry of the developed world which fears for its own prosperity.

Jeffrey Sachs delivers the third of five lectures from the Earth Institute at Columbia University, New York. He talks about the need for international co-operation.

Jeffrey Sachs delivers the second lecture from the University in Beijing. He discusses China's emergence as an economic superpower and asks what this means for the challenges ahead.