1. The following works by Nietzsche are all published in the series of Cambridge Texts in the History of Philosophy. Cambridge: Cambridge University Press
2. Daybreak (D). (1997). Edited by M. Clark and B. Leiter
3. The Gay Science (GS). (2001). Edited by B. Williams
4. Thus Spoke Zarathustra (Z). (2006). Edited by A. Del Caro and R. Pippin
5. Beyond Good and Evil (BGE). (2002). Edited by R.-P. Horstmann and J. Norman