An indictment......................

. . .why is it that these Utopias never arrive upon the map?
     He answers, because of greed and luxury.  Men are not content with a simple life:  they are acquisitive, ambitious, competitive, and jealous;  they soon tire of what they have, and pine for what they have not; and they seldom desire anything unless it belongs to others.  The result is the encroachment of one group upon the territory of another . . .

-Will Durant,  The Story of Philosophy:  The Lives and Opinions of the Greater Philosophers, from his chapter on Plato