TELL him that the men who fought on either side at Hastings' plain cared nothing for national but everything for feudal
allegiance;
that lex terrae means the local custom of ordeal and not the "law of the land"; tell him that judicium parium
means the right of a noble to be judged by nobles, and has nothing to do with the jury system;
tell him that Magna Carta was
certainly drawn up before the meeting at Runnymede; that not until the Lancastrians did English kings speak English; that
Oliver Cromwell owed his position to the enormous wealth of the Williamses, of whom had he not been a cadet, he would never
have been known; tell him that
the whole force of the Parliament resided in the squires and that the Civil Wars turned
England into an oligarchy; tell him
the exact truth about the infamy of Churchill; tell him what proportion of Englishmen
during the American War were taxed without being represented; tell him
what proportion of Washington's troops were of English blood; tell him
any one illuminating and true thing about the history of his country, and the novelty will so offend him that a direct insult would have pleased him better.
https://en.wikisource.org/wiki/First_and_Last_(Belloc)/On_the_Decline_of_the_Book