The author's main analytic tool is Ferdinand de Saussure's theoretical distinction between
langue and parole. Langue refers to the basic code of any empirical language, the set of sounds and semantic constructs passively imposed on anyone who is born into or learns it.
Many such analytical models draw on a crucial distinction in semiotic/linguistic theory between langue and parole, between language as a synchronic system, and language as diachronic utterance, devolving in time.
(This important observation recalls a further distinction of langue and parole: the former is sui generis, but parole is inevitably mixed, involving, e.g., gesture and tone.
If we follow the teachings of linguists, among them Saussure in his Cours de linguistique generale or Benveniste, we should make the distinction between langue and parole. In Chomsky's terms, the feature of langue is to provide a `competence' that it is parole's business to realize and act upon, rather like the muscles that give life to the basic skeleton.
Is this functional balance between langue and parole maintained when violence breaks into language?
Worrall's critical approach denies such marginality, using Saussure's distinction between
langue and parole to argue that every utterance requires an already existing language to make it possible: 'One utterance or parole, ideologically marked, proves the availability of the system of langue which, in turn, enables it to be infinitely articulated.
Saussure's most famous concepts,
langue and parole, language as a system of signs, and synchrony and diachrony, were already removed from their original formulation by the time they appeared in print, since Saussure never prepared them for publication himself.