Thank you both for your efforts.
I am absolutely certain it came from a history book and was attributed. I can even picture the history book in my mind. Sadly, it was called, History of Modern Europe'. That narrows it down to about a few thousand titles.

It was a school text, designed for A level. About equal to senior class in your High Schools.
I am also certain of the wording. I recall annalysing it at the time. I even used it in at least two papers I wrote around that time. Sadly, I don't have any of the stuff I wrote up to 1994.
I'm pulling my hair out here. There has to be someone who knows who said it.
But thank you both for responding. I do appreciate your input and efforts.