S?ren Kierkegaard: Fear and Trembling and Repetition (Kierkegaard’s Writings, Vol. 6) Edited and translated by Howard V. Hong and Edna H. Hong, 1983, Princeton University Press. ISBN-10: 0691020264, ISBN-13: 978-0691020266
Friedrich Nietzsche, Untimely Meditations. Daniel Breazeale (editor), Cambridge University Press, 2nd. edition, 1997 (paperback). ISBN-10: 0521585848, ISBN-13: 978-0521585842
Friedrich Nietzsche, On the Genealogy of Morals. Translation and Notes by Maudemarie Clark and Alan J. Swensen, Introduction by Maudemarie Clark. Hackett Publishing Company, 1998, ISBN: 978-0-87220-283-2