In epochs when cash payment has become the sole nexus of man to man.

-Carlyle,Thomas
  Chartism, ch.6.

   New York was no mere city. It was instead an infinitely romantic notion, the mysterious nexus of all love and money and power, the shining and perishable dream itself. To thinkof 'living'there was to reduce the miraculous to the mundane; one does not 'live'at Xanadu.

-Didion,Joan
  'Goodbye To  All That', collected in Slouching Towards Bethlehem (1968).