Brandes and Nietzsche wrote letters back and forth between 1886–1888. In 1886 Nietzsche sent Brandes copies of Beyond Good and Evil (written in 1885) and later Genealogy of Morals and Human, All Too Human. (p. 314). Brandes sent Nietzsche a copy of Main Currents in 1888. (pp. 331–331) Nietzsche wrote in May of 1888 that "Dr. George Brandes is now delivering an important course of lectures at the University of Copenhagen on the German philosopher Freidrich Nietzsche! According to the papers these lectures are having the most brilliant success. The hall is full to overflowing each time; more than three hundred people present." (p. 227). "They were ready for my theory of 'master morality' owing to the thorough general knowledge they possess of the Icelandic sagas which provide very rich material for the theory. I am glad to hear that the Danish philologists approve and accept my derivation of bonus: in itself it seems rather a tall order to trace the concept 'good' back to the concept 'warrior'." (p. 229)
On January 11, 1888 Brandes wrote the following to Nietzsche, "There is a Northern writer whose works would interest you, if they were but translated, Soren Kierkegaard. He lived from 1813 to 1855, and is in my opinion one of the profoundest psychologists to be met with anywhere. A little book which I have written about him (the translation published at Leipzig in 1879) gives me exhaustive idea of his genius, for the book is a kind of polemical tract written with the purpose of checking his influence. It is, nevertheless, from a psychological point of view, the finest work I have published." (p. 325) Nietzsche wrote back that he would "tackle Kierkegaard's psychological problems" (p. 327) and then Brandes asked if he could get a copy of everything Nietzsche had published. (p. 343) so he could spread his "propaganda". (p. 348, 360–361)
Selected Letters of Friedrich Nietzsche 1st ed. edited, with a preface, by Oscar Levy ; authorized translation by Anthony M. Ludovici Published 1921 by Doubleday, Page & Co
Olivier Ponton, ""Mitfreude". Le projet nietzschéen d'une "éthique de l'amitié" dans "Choses humaines, trop humaines"", HyperNietzsche, 2003-12-09 (on-lineArchived 2007-09-27 at the Wayback Machine) (in French)
"Wir Heimatlosen". Die fröhliche Wissenschaft (in German). Nietzsche Source. Retrieved 2015-08-21.
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Leiter, Brian (2021), "Nietzsche's Moral and Political Philosophy", in Zalta, Edward N. (ed.), The Stanford Encyclopedia of Philosophy (Summer 2021 ed.), Metaphysics Research Lab, Stanford University, retrieved 2022-03-09
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Olivier Ponton, ""Mitfreude". Le projet nietzschéen d'une "éthique de l'amitié" dans "Choses humaines, trop humaines"", HyperNietzsche, 2003-12-09 (on-lineArchived 2007-09-27 at the Wayback Machine) (in French)
