H. L. Mencken,
The American Language — Preface to the Second Edition
(1919)
“ Worse, they must deal with phrases that no two individuals utter precisely alike. Thus grammar begins to ground itself on phonology, as it once grounded itself upon etymology, and the grammarian can no longer lock himself in his study with his books, but must go among men and women and listen attentively to what they say. The old-fashioned science of grammar was almost helpless in dealing with such a thing as the American vulgate; the new science, as I say, demands a wide and accurate knowledge in fields wherein my own knowledge is sadly imperfect. ”
