John Gray is Professor of European Thought at the London School of
Economics. His most recent book is Heresies: Against Progress and Other
In Frontiers of Justice, philosopher Martha Nussbaum explores our moral
obligations to the disabled, to nonhuman animals and to the unresolved
areas of international law.
Kwame Anthony Appiah's Cosmopolitanism explores the middle ground between the universal laws of liberalism and relativism's blind respect for all