We focus upon pairs of words very often which are the same in some areas and different in other areas.
William LabovBut unlike European countries, America has never finished a map of the United States, only the eastern United States is covered and a few spots here and there.
William LabovI have resisted the term sociolinguistics for many years, since it implies that there can be a successful linguistic theory or practice which is not social.
William Labov