" Dors shook her head. “I can’t bear to hear a human being spoken of with contempt just because of his group identification—even by other human beings. It’s these respectable people here who create those hooligans out there.” “And other respectable people,” said Seldon, “who create these respectable people. These mutual animosities are as much a part of humanity— "

― Isaac Asimov , Prelude to Foundation