Together, Britain and Germany should be highlighting the idea of what the EU means to all its members, not only to Europeans but to the world. This is what ultimately will convince people. For example, what would happen in the world without a Europe that can speak with one voice? Where would science, engineering, literature and politics be without Europe? It is highly significant that no fewer than 133 UK university vice-chancellors have gone public in opposing a “Brexit”, because it would threaten scientific research and the Erasmus Exchange Programme.