Political philosophy is realistically utopian when it extends what are ordinarily thought to be the limits of practicable political possibility and, in so doing, reconciles us to our political and social condition. Our hope for the future of our society rests on the belief that the social world allows a reasonably just Society of Peoples.

The Law of Peoples: With, The Idea of Public Reason Revisited (ed. Harvard University Press, 2001) - ISBN: 9780674005426