The difficulty with Europe is unsettling because it is unsettled. If one asks what is Europe's geographical boundary, the honest answer is unclear, except that the boundary is moving further east and getting bigger. If one asks what is Europe as an idea, the boundaries are fascinating. For example, there are passionate arguments in the European Parliament about the accession of Turkey. We can all make lovely speeches about the need for a dialogue of civilisations. Turkey is a secular republic, but it is the only Islamic state wishing to join Europe. As Europeans, are we capable of having a boundary which is beyond Judeo-Christianity? That is a different kind of boundary. These boundaries are unsettled and therefore unsettling.