Friedrich Nietzsche, On the Genealogy of Morals and Ecce Homo, ed. and tr. by Walter Kaufmann, Vintage Books, 1989 reprint


Friedrich Nietzsche, in Walter Kaufmann, ed., The Portable Nietzsche, Penguin Books, 1977


Friedrich Nietzsche, The Will to Power, tr. by Walter Kauffmann and R. J. Hollingdale, Vintage Books, 1968


Friedrich Nietzsche, Untimely Meditations, tr. by R. J. Hollingdale, Cambridge University Press, 1997