What distinguishes semiology from linguistics is that we have already drawn the line. We determine the exact place of semiology which is the task of the psychologist. But the task of the linguist is to find out what makes language a special system within the mass of semiological data. Although, it is distinct from linguistics despite the points of contact between the two sciences and mutual services that they provide.
During our everyday language we use signs by communicating with people. Language is a physical form, no less so than speaking; and this is a help in our study of it. Linguistic signs, though basically psychological, are not abstractions; associations which bear the stamp of collective approval. The subject matter of linguistics comprises all manifestations of human speech, whether that of savages or civilized nations, or of archaic, classical or decadent periods. In general communication, Language is checked not only by the weight of the collect but also by time.
As of language, graphic communication, and visual arts are related, considering language in time, without the community of speakers. Imagine an isolated individual Uving for several centuries. Although, we probably would notice no change and time would not influence language. Conversely, if we considered the community of speakers without considering time. We would not see the effect of the social forces that influence language. It changes in time takes many forms, on any one of which an important chapter in linguistics might be written.
