“Nations die. Old regions grow arid, or suffer other change. Resilient man picks up his tools and his arts, and moves on, taking his memories with him. If education has deepened and broadened those memories, civilization migrates with him, and builds somewhere another home. In the new land he need not begin entirely anew, nor make his way without friendly aid; communication and transport bind him, as in a nourishing placenta, with his mother country. Rome imported Greek civilization and transmitted it to Western Europe; America profited from European civilization and prepares to pass it on, with a technique of transmission never equaled before.”
Will & Ariel Durant. The Lessons of History (1968). Pg 94.