44:36
Political philosophy
Who should lead the world's only superpower? When is it acceptable to topple another country's leader? Are personal freedom and national security mutually incompatible? The answers to urgent political questions such as these are informed by 23 centu...
41:13
Modern philosophy
During the 16th century, a new breed of thinker arose, equal parts philosopher and scientist, that threw off the received wisdom of the past and started afresh. In this program, Paul Guyer, of the University of Pennsylvania; Rutgers University's Col...