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Well, we don't know why they did what they did.
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So nonetheless,the desire for a good commercial opportunity
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might well have been one of the elements
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that these people who were leaving their home cities sought.
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Then there are less--what's the word I want?
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Certainly things that have nothing to do with economics really
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-there are politics going on in these states
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as there always are in any Greek polis.
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There are factions that grow up for one reason or another
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and they come into conflict.
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One side wins the argument and the battle,
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and sometimes the ill will is so great