"Social pragmatics does not have the "simplicity " of scientific pragmatics. It is a monster formed by the interweaving of various networks of heteromorphous classes of utterances (denotative, prescriptive, performative, technical, evaluative, etc.). There is no reason to think that it would be possible to determine metaprescriptives common to all of these language games or that a revisable consensus like the one in force at a given moment in the scientific community could embrace the totality of metaprescriptions regulating the totality of statements circulating in the social collectivity. As a matter of fact, the contemporary decline of narratives of legitimation – be they traditional or "modern" (the emancipation of humanity, the realization of the Idea) – is tied to the abandonment of this belief. It is its absence for which the ideology of the "system," with its pretensions to totality, tries to compensate and which it expresses in the cynicism of its criterion of performance. For this reason, it seems neither possible, nor even prudent, to follow Habermas in orienting our treatment of the problem of legitimation in the direction of a search for universal consensus through what he calls Diskurs, in other words, a dialogue of argumentation."
January 1, 1970
https://en.wikiquote.org/wiki/J%C3%BCrgen_Habermas