Copenhagen: C. A. Reitzel, 1843. First Edition. Very Good. First edition of Soren Kierkegaard's best-known work, Either/Or. Octavo. Two volumes bound in contemporary half-calf over marbled boards; bound without the half-titles. Text in Danish. Very Good rubbing and wear to bindings, neatly rebacked with old spines preserved. Former owner names to preliminary blacks and owner's rubber stamp to title pages. Contents tanned, sporadically foxed and occasionally lightly stained. A lovely set. Either/Or, Danish philosopher Søren Aabye Kierkegaard's groundbreaking first published work. Only 525 copies of this edition were published in 1843 under an editorial pseudonym ("Victor Emerita") at the author's own expense. It was mostly written during his stay in Berlin, where he took notes on Schelling's Philosophy of Revelation. It includes essays of literary and music criticism and a set of romantic-like-aphorisms, as part of his larger theme of examining the reflective and philosophical…