1/4 Prof Michael Sandel considers the expansion and moral limits of markets.
BBC Radio 4
4/4 Spence discusses how Chinese ideas of sport and athleticism have slowly evolved.
3/4 Spence explores the relationship between China and the US over two centuries.
2/4 Spence examines China's relations with the United Kingdom through three centuries.
1/4 Spence reflects on China's most enduring thinker, Confucius.
5/5 Jeffrey Sachs calls for a new Enlightenment to help make globalisation work for all.
4/5 Jeffrey Sachs delivers the fourth of five lectures. He considers the challenges of poverty
3/5 Jeffrey Sachs talks about the need for international cooperation to achieve peace.
2/5 Sachs discusses China's emergence as an economic superpower and the effect on climate.
1/5 Jeffrey Sachs delivers the first of five lectures, recorded at The Royal Society in London