“The fact is that the Romans were blinded to what was happening to them by the very perfection of the material culture which they had created. All around them was solidity and comfort, a material existence which was the very antithesis of barbarism. How could they foresee the day when the Norman chronicler would marvel over the broken hypocausts of Caerleon? How could they imagine that anything so solid might conceivably disappear? Their roads grew better as their statesmanship grew worse and central heating triumphed as civilization fell.”
Book:Medieval People