The writings of Henry David Thoreau (1817-1862) have captivated scholars, activists, and ecologists for more than a century. Less attention has been paid, however, to the author's political philosophy and its influence on American public life. Although Thoreau's doctrine of civil disobedience has long since become a touchstone of world history, the greater part of his political legacy has been overlooked. With a resurgence of interest in recent years,...