In an article in a recent issue of Language (Newmeyer 2003), Frederick Newmeyer argues for a clear separation between what he terms ‘knowledge of language [i.e. grammar] and use of language [i.e. pragmatics]’ (682). In developing his argument, N makes frequent reference to linguistic analyses that are corpus-based, that is, centered on information taken from large datasets of actual speech or writing (e.g. transcriptions of conversations, newspaper articles, novels). In N’s view, grammar is distinct from pragmatics, and because a corpus contains examples of actual language use drawn from a large community of speakers and writers, it can yield only performance data. As a result, N argues, ‘there is no way that one can draw conclusions about the grammar of an individual from usage facts about communities, particularly communities from which the individual receives no speech input’ (696).