Harvard sociologist and noted public intellectual, Nathan Glazer, presents the 2009 Seymour Martin Lipset Lecture entitled Democracy and Diversity: Dealing with Deep Divides.

Harvard psychologist and author, Howard Gardner, best known for his theory of multiple intelligences, delivers a lecture based on his book Good Work: When Excellence and Ethics Meet.

Influential blogger, Shel Israel, shares insights from his book Twitterville: How Businesses Can Thrive in the New Global Neighbourhoods.

Editor of Skeptic Magazine, Michael Shermer, delivers an entertaining lecture on his book Why People Believe Weird Things.

The author of Lords of Finance: The Bankers Who Broke the World, Liaquat Ahamed, discusses the connections between the world's financial decision makers in the period leading up to the Great Depression and their counterparts in the current global financial crisis.

Describing herself as an atheist who defends religion, academic and author, Camille Paglia, argues that an understanding of world religions and their symbols is essential to fully understanding human civilization and our place in the universe.

The second part of the lecture entitled Justice and Theatre: Great Moments in Great Trials examines Nicolae Bukharin and the Moscow Show Trials and the 1945 Nuremberg Trials.

The first of this two-part lecture entitled Justice and Theatre: Great Moments in Great Trials looks at the libel trial of Oscar Wilde in 1895.

Richard Leakey, professor of Anthropology at Stony Brook University in New York is best known for his paleontological work in Africa. His lecture, entitled Climate Change and the Future of Life on Earth deals with wildlife conservation and was recorded at the Royal Ontario Museum in Toronto on May 30th, 2009.

Leonard Mlodinow, of the California Institute of Technology is the author of The Drunkard's Walk: How Randomness Rules Our Lives. His lecture on the subject of randomness was presented by the Perimeter Institute in Waterloo, Ontario on May 6th, 2009.