Background: Cosmopolitans and their critics often imagine a spectrum of affinities--concentric circles of belonging reaching from the self and family to the ethnic group, the nation and, finally, to all humanity. Debates over the role schools should play in educating "world citizens" versus national patriots follow suit: Should educators work to…

Contemplating the root of the word "idiocy" leads the author to explore the challenge that democratic societies face of developing public-minded citizens. The schools, he argues, are the most likely institutions to succeed in that task. Schools in societies that are trying in various ways to be democracies, such as the United States,…