"Like the idea of democracy in early classical Greece and again in the seventeenth and eighteenth centuries in Europe and America, anarchism presents a novel vision of human possibilities, a society in which the major institution of organized coercion has disappeared. It would be easy and convenient to dismiss that vision as utterly impractical if it were not for the familiar fact that the revolutionary ideas of the impractical visionaries of one epoch sometimes become the orthdoxy of the next."