Book excerpt: Since the 1960s a resurgence of interest in the moral foundations of politics has fueled debates about the appropriate sources of our political judgments. Ian Shapiro analyzes and advances these debates, discussing them in an accessibly style. He defends a view of politics called critical naturalism as a third way between the neo-Kantian theory of John Rawl's and the contextual arguments of Richard Rorty, Michael Walzer, Alasdair MacIntyre and others. He formulates a new justification for democratic politics and an innovative account of the nature of political argument. This title is part of UC Press's Voices Revived program, which commemorates University of California Press's mission to seek out and cultivate the brightest minds and give them voice, reach, and impact. Drawing on a backlist dating to 1893, Voices Revived makes high-quality, peer-reviewed scholarship accessible once again using print-on-demand technology. This title was originally published in 1990. Since the 1960s a resurgence of interest in the moral foundations of politics has fueled debates about the appropriate sources of our political judgments. Ian Shapiro analyzes and advances these debates, discussing them in an accessibly style. He defends