From Ferdinand de Saussure's
Notebooks

Various concepts are present in language (that is, clothed in linguistic form) such as beef, lake, sky, red, sad, five, to split, to see

At what moment, and by virtue of what operation, what interplay between them, what conditions, do these concepts form discourse?

The sequence of these words, however enriched it might be by the ideas it evokes, will never make any human being understand that another human being, by pronouncing it, wishes to convey something specific to him or her

What do we need to indicate that by using certain terms available to language we wish to signify a specific thing?. . . Discourse exists . . . in ways we do not understand, to assert a link between two concepts invested with linguistic form.

Language, on the other hand, only makes preliminary recognition of isolated concepts which do not acquire the significance of thought until links have been established among them.
Initial Anxiety  Fascination Earl Jackson,  Jr. Web-Top
  Communicate Communicate