What is truly beautiful? For Søren Kierkegaard the beautiful is to be found in an integrated self, one that is freely chosen. This article explores Kierkegaard's "aesthetic" stage of existence through the character of Augusto Pérez, the protagonist of Miguel de Unamuno's novel, Niebla. After establishing a solid link between Unamuno and Kierkegaard, Kierkegaard's "ethical" stage is used to critique the "aesthetic" stage on aesthetic grounds, on the basis of the beauty found in life's work, a calling. The conclusion is (...) that the sphere of the "aesthetic" does not achieve Kierkegaard's "aesthetics" of an integrated, fully existing self. (shrink)