“The Germanic invasions destroyed neither the Mediterranean unity of the ancient world, nor what may be regarded as the truly essential features of the Roman culture.”— Henri Pirenne
“The Oriental world, though it formed part of the Roman Empire, was never truly Romanized.”— Michael Rostovtzeff
“The court of Rome is like the sea, into which all rivers run, and it is never filled.”— Walter Map
“From every point of view, the Roman Empire was essentially Mediterranean. All its activities were concentrated on the shores of this sea.”— Henri Pirenne
“What happened was a slow and gradual change, a shifting of the centre of gravity in the life of the Empire.”— Michael Rostovtzeff
“The main problem of the Roman Empire may be summed up in the words: the absorption of the proletariat.”— Michael Rostovtzeff
“Aspicite, o cives, senis Enni imaginis formam. Hic vestrum panxit maxima facta patrum.”— Quintus Ennius
“The crisis of the third century was not a crisis of this or that branch of the life of the state: it was a general crisis.”— Michael Rostovtzeff