Hence, a generative grammar must be a system of rules that can iterate to generate an indefinitely large number of structures. This system of rules can be analyzed into the three major components of a generative grammar: the syntactic, phonological, and semantic components... the syntactic component of a grammar must specify, for each sentence, a deep structure that determines its semantic interpretation and a surface structure that determines its phonetic interpretation. The first of these is interpreted by the semantic component; the second, by the phonological component.
Noam ChomskyDescriptive grammar is an attempt to give an account of what the current system is for either a society or an individual, whatever you happen to be studying.
Noam ChomskyTo go back to a moment of Western civilization remote enough in time so that we should be able to look at it dispassionately, ask what happened during World War I. What was the typical behavior of respected intellectuals in Germany, England, the United States? What happened to those who publicly questioned the nobility of the war effort, on both sides? I do not think the answers are untypical.
Noam ChomskyThis would be a very good moment to institute a call for imposing the Chemical Weapons Convention on the Middle East. The actual Chemical Weapons Convention. Not the version that [Barack] Obama presented in his address to the nation and that media commentators repeat. What he said is that the convention bars the use of chemical weapons. He knows better. And so do the commentators. The Chemical Weapons Convention calls for banning the production, storage and use of chemical weapons, not just the use. So why omit production and storage?
Noam Chomsky