Maudemarie Clark is Professor of Philosophy, Emeritus, University of California, Riverside.Alan J. Swensen is Associate Professor of German, Emeritus, Colgate University.

"Hackett's On the Genealogy of Morality (we now have even the correct title!) may very well change the entire climate for reading Nietzsche in English—especially if read in conjunction with their equally splendid Twilight of the Idols. . . . Competing translations of Nietzsche’s late, utterly influential masterpieces have often made them a chore, rather than a delight, to read; and their introductions generally obscure, rather than illuminate, the texts’ situations. Clark and Swensen (and Polt and Strong) have made the Genealogy and Twilight accessible and exhilarating—while leaving them, as they are, enigmatic and problematic. Finally, readers of Nietzsche in English can—begin!"—William Arctander O'Brien, University of California, San Diego