The instrument of expansion of Classical civilization was a social organization, slavery.
Carroll QuigleyA state is not the same thing as a society, although the Greeks and Romans thought it was. A state is an organization of power on a territorial basis.
Carroll QuigleyHitler's economic revolution in Germany had reduced financial considerations to a point where they played no role in economic or political decisions
Carroll QuigleyThe argument that the two parties should represent opposed ideals and policies, one, perhaps, of the Right and the other of the Left, is a foolish idea acceptable only to doctrinaire and academic thinkers. Instead, the two parties should be almost identical, so that the American people can throw the rascals out at any election without leading to any profound or extensive shifts in policy. Then it should be possible to replace it, every four years if necessary, by the other party, which will be none of these things but will still pursue, with new vigor, approximately the same basic policies.
Carroll Quigley