I visited London several years ago, and in the house we were staying was a relatively short book describing, for lack of a better term, "British exceptionalism", and it resonated with me as an American. I don't recall that much, but I do remember the idea, for example, that the European Union was seen to be a good thing in the eyes of the archetypal Brit "for the continent", and not for the British isles. Always exempting themselves from international cooperation/norms/laws, etc. I think America inherited a lot from the British (certainly not an original idea of mine).