Why borders matter

There is no better way of discrediting an opinion than by attributing it to a psychological quirk or peculiarity. The task is then not to refute it, but to explain it away by reference to its murky psychic origins. For a number of years, doubt about the wisdom of a European project (whose end can only be seen as through a glass, darkly) was attributed by its enthusiasts to precisely such a quirk: one that combined some of the features of mental debility, arachnophobia and borderline personality disorder.