Book excerpt: NATIONAL BESTSELLER Finalist for the Pulitzer Prize A new edition of the iconic bestseller that introduced legions to modern physics and the quest for the ultimate understanding of the cosmos, featuring a new preface and epilogue. With a rare blend of scientific insight and writing as graceful as the theories it so deftly explains, The Elegant Universe remains the unrivaled account of the modern search for the deepest laws of nature: “a standard that will be hard to beat” (George Johnson, New York Times Book Review). In this new 25th anniversary edition, renowned physicist and author Brian Greene—“the single best explainer of abstruse concepts in the world today” (Washington Post)—updates his classic work with a new preface and epilogue summarizing the significant theoretical and experimental developments over the past quarter-century. From established science, including relativity and quantum mechanics, to the cutting edge of thinking on black holes, string theory, and quantum gravity, The Elegant Universe makes some of the most sophisticated concepts ever contemplated thoroughly accessible and entertaining, bringing us closer than ever to comprehending how the universe works.