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).

Yes Minister explains it nicely:

"Minister, Britain has had the same foreign policy objective for at least the last 500 years: to create a disunited Europe. In that cause we have fought with the Dutch against the Spanish, with the Germans against the French, with the French and Italians against the Germans, and with the French against the Germans and Italians. Divide and rule, you see. Why should we change now, when it's worked so well?"