" The mania for collecting can easily turn simply into accumulating. All one has to do is develop one collecting interest after another, and so on. But collectors of a particular category of articles almost always lose interest once they have reached their goal. When the collection is complete, what else is there to do?...Failure makes it possible to avoid the effort: he simply carries on as before. (pp. 25-26) "

― Jacques Bonnet , Phantoms on the Bookshelves