While I agree that language and identity are related in a positive and significant way, I do not agree that the one cannot exist without the other. A cultue can define a language as its own, but it is not necessary to use that language in order to be a part of that culture. For example, hebrew is the language of the Jews; I am a Jew who does not speak hebrew. I can identify myself as Jewish independent of language. Thus, despite their close ties, language and identity are not inextricable.