Offers a new theory of history through an original reading of Lucretius' De Rerum Natura For Lucretius, history means something surprisingly different than we ordinarily think. Instead of thinking of history in terms of time, he thought of it in terms of motion. This book unpacks the implications of this unique kinetic philosophy of history. In the final volume of his trilogy on De Rerum Natura, Thomas Nail argues that in books five and six, Lucretius described a world born to die. What does it mean to live in such a world? De Rerum Natura provides a guidebook to answering this question. Thomas Nail is Professor of Philosophy at the University of Denver. He is the author of Lucretius I: An Ontology of Motion and Lucretius II: An Ethics of Motion.