'No, but it is a rule that they must pay dues – for which there is ever a need – and this chap had not paid his dues in many a year. Sir Isaac – who is the President of the Royal Society – looks with disfavor on such. I explained to the gentleman in New York why it was a Bad Idea to land on Sir Isaac's Shit List – by your leave, by your leave – and he was so convinced by my arguments that he lent me his best riding-horse without further suasion.'