Contributor(s): Professor Philippe Van Parijs | Is democracy sustainable in a multilingual polity? Or should appropriate institutions make democracy compatible with multilingualism? Which of these views does the experience of the European Union support? Or is the EU irrelevant to this dispute as English fast becomes Europe's lingua franca? Philippe Van Parijs directs the Hoover Chair in Economic and Social Ethics at the University of Louvain and is visiting professor at the Philosophy Department of Harvard University.