The ultimate law of language is, dare we say, that nothing can ever reside in a single term. This is a direct consequence of the fact that linguistic signs are unrelated to what they designate and that, therefore, 'a' cannot designate anything without the the aid of 'b' and vice versa, or, in other words, that both have value only by the difference between them.
Ferdinand de SaussureIt is only since linguistics has become more aware of its object of study, i.e. perceives the whole extent of it, that it is evident that this science can make a contribution to a range of studies that will be of interest to almost anyone.
Ferdinand de SaussureWithin speech, words are subject to a kind of relation that is independent of the first and based on their linkage: these are syntagmatic relations, of which I have spoken.
Ferdinand de SaussureIt is useful to the historian, among others, to be able to see the commonest forms of different phenomena, whether phonetic, morphological or other, and how language lives, carries on and changes over time.
Ferdinand de Saussure