Interestingly, that was the only one I categorized differently from the authors—I could find a meaning for it. It's not an aphorism in the same way as the others (I'm not clear on whether that was the point, or just whether the statement had to be meaningful in general)—but it could be interpreted as follows:

Something has 'abstract beauty' (as opposed to concrete, surface beauty) through some conceptual significance it contains; however, once you look more, there is a deeper hidden meaning to the concepts, which changes the beauty into something else.