 Kierkegaard's reputation as a philosopher was first established in his native Denmark with his work "Either/Or".Henriette Wulff, in a letter to Hans Christian Andersen, wrote, ""Recently a book was published here with the title "Either/Or"!It is supposed to be quite strange, the first part full of Don Juanism, skepticism, et cetera, and the second part toned down and conciliating, ending with a sermon that is said to be quite excellent.