It is a poem by the Greek poet C. P. Cavafy: Waiting for the babarians. A snippet from the poem:
Why have our two consuls and praetors come out today
wearing their embroidered, their scarlet togas?
Why have they put on bracelets with so many amethysts,
and rings sparkling with magnificent emeralds?
Why are they carrying elegant canes
beautifully worked in silver and gold?
Because the barbarians are coming today
and things like that dazzle the barbarians.
I think we are, all over Europe, still expecting the barbarians. However, we have forgotten who they are.