Paul Elmer More

“That a language may retain its vitality and dignity, two things are necessary. In the first place, it must keep in close touch with life, and must respond to those constant alterations which look like corruptions but which are quite as often signs of growth. In the second place, it must submit to some kind of selective authority which creates a generally recognized but slowly changing norm of speech. Without the former condition a language will become rigid, conventional, and emotionless; without the second it will just as surely tend to become provincial and formless--even unintelligible, except locally and ephemerally.”
― Paul Elmer More