The essence of oligarchical rule is not father-to-son inheritance, but the persistence of a certain world-view and a certain way of life, imposed by the dead upon the living. A ruling group is a ruling group so long as it can nominate its successors. The Party is not concerned with perpetuating its blood but with perpetuating itself. Who wields power is not important, provided that the hierarchical structure remains always the same.
George OrwellIf he were allowed contact with foreigners he would discover that they are creatures similar to himself and that most of what he has been told about them is lies. The sealed world in which he lives would be broken, and the fear, hatred and self-righteousness on which his morale depends might evaporate.
George Orwell