A great civilization is not conquered from Posted on October 4, 2015October 4, 2010 by admin “A great civilization is not conquered from without until it has destroyed itself from within.” — Ariel Durant Author: Ariel Durant Category: great Tags: great, Ariel Durant Spread the love Related posts: Death will be a great relief. No Govern a great nation as you would It will be a great day when Every great inspiration is but an experiment.