August Strindberg was familiar with "Either/Or" and this book made him "forever a champion of the ethical as juxtaposed to the aesthetic life conception and he always remained faithful to the idea that art and knowledge must be subservient to life, and that life itself must be lived as we know best, chiefly because we are part of it and cannot escape from its promptings." Strindberg was obviously attracted to "Either/Or Part II" where Kierkegaard developed his categorical imperative. He wrote the following in "Growth of a Soul" published posthumously in 1913 about Kierkegaard's "Either—Or": "it was valid only for the priests who called themselves Christians and the seducer and "Don Juan" were the author himself, who satisfied his desires in imagination". Part II was his "Discourse on Life as a Duty, and when he reached the end of the work he found the moral philosopher in despair, and that all this teaching about duty had only produced a Philistine." He then states that Kierkegaard's discourses might have led him closer to Christianity but he didn't know if he could come back to something "which had been torn out, and joyfully thrown into the fire". However, after reading the book he "felt sinful". Then another writer began to influence his life. This is how he described "Either/Or":