It’s remarkable, so of course, most will not read it. Yet, here it is: Sir John Glubb’s Fate of Empires.
Among many succinct observations, it even includes condemnation of fake, post-modern “education”:
I remember once visiting a school for mentally handicapped children. “Our children do not have to take examinations,” the headmaster told me, “and so we are able to teach them things which will be really useful to them in life.”
Read the whole thing, if your so capable and inclined.