There are in the present volume no quotations from Nietzsche's _"Ecce Homo"_ or from the pamphlets dealing with Wagner. The former work is an autobiography which, while it throws light on both Nietzsche's character and his work, is nevertheless outside his purely philosophical writings. And the Wagner documents, though interesting, have little to do with the Nietzschean doctrines, except as showing perhaps the result of their application. I have therefore left them intact for the student who wishes to go more deeply into the philosopher's character than I have here attempted. W. H. W. WHAT NIETZSCHE TAUGHT I Biographical Sketch Nietzsche liked to believe that he was of Polish descent. He had a greater admiration for the Poles than for the Germans, and went so far as to instigate an investigation by which he hoped to prove beyond a shadow of a doubt that he was not only Polish but was descended from the Polish nobility. His efforts, his sister tells us, were not entirely successful, although some evidence was turned up which pointed to the truth of this theory. Several of the dates in the report, however, did not accurately tally, and since many of Nietzsche's papers containing the results of his genealogical research were lost in Turin after his breakdown, the hypothesis of his Polish descent consequently remains somewhat mythical. Nietzsche's theory was that his great-great-grandfather was a nobleman named Nicki who fled from Poland during the religious wars, as a fugitive under sentence of death, and took with him a young son who afterward changed his name to Nietzsche. There is a romance in this belief which appealed strongly to the philosopher. He saw a genuine grandeur in the fact that his ancestor had become a fugitive for his religious and political opinions. This belief in time became a conviction with him, and in the later years of his life we find him definitely asserting the truth of this family tradition.