I have often been struck in Britain by this sort of thing - by how mysteriously well educated people from unprivileged background so often are, how the most unlikely people will tell you plant names in Latin or turn out to be experts on the politics of ancient Thrace or irrigation techniques at Glanum. This is a country, after all, where the grand final of a programme like Mastermind is frequently won by cab drivers and footplatemen. I have never been able to decide whether that is deeply impressive or just appalling - whether this is a country where engine drivers know about Tintoretto and Leibniz or a country where people who know about Tintoretto and Leibniz end up driving engines. All I know is that it exists more here than anywhere else.