There is a need for a new kind of linguistic theory which, while being concerned with both generation and analysis, must include the roles of memory, non-linguistic knowledge, and inference. The role of logic is diminished according to such a theory because inference has no real logical content. Meaning must be studied with respect to the actual usage of the speaker. Linguistics must encompass a procedure for making explicit the information that is implicit in certain sentences, and it must allow for the possibility of mistakes and mistaken inferences in speech. Linguistic theory must deal with the way humans use language and the facts of language use. (VM)