Roberto Mangabeira Unger is a philosopher and politician. A revolutionary thinker in a non-revolutionary age, he has been deemed a visionary and one of the world's most influential theorists. The author of nearly two dozen books, his work probes the most fundamental questions of the human and natural worlds. He is active in progressive politics around the world and twice served as the Brazilian Minister of Strategic Affairs.
Macabe Keliher Macabe Keliher is associate professor of history at Southern Methodist University and author of The Board of Rites and the Making of Qing China. He is also co-founder of Democracy Policy Network, a program of deep freedom and radical democracy.