Emeritus professor at the Institute for Advanced Studies in Princeton, New Jersey. Recipient of the 2008 Spinoza Lens prize awarded biennially by the Netherlands. Cited as "one of the most prominent political thinkers of our time." His published works include "Arguing About War" (2004), "On Toleration" (1999), "Spheres of Justice (1983), and "Just and Unjust Wars" (1977).