Eternity

"Life has no inherent claim to eternity, whether in individuals or in states. Death is natural, and if it comes in due time is forgivable and useful, and the mature mind will take no offense from its coming...
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.
Civilizations are the generations of the racial soul. As life overrides death with reproduction, so an aging culture hands its patrimony down to its heirs across the years and the seas. Even as these lines are being written, commerce and print, wires and waves and invisible Mercuries of the air are binding nations and civilizations together, preserving for all what each has given to the heritage of mankind." - Will and Ariel Durant The Lessons of History