Saussure explicitly suggested that linguistics was only a branch of a more general semiology, a science of signs in general, human codes being only one part. Nevertheless, in the end, as Derrida pointed out, Saussure made linguistics "the regulatory model", and "for essential, and essentially metaphysical, reasons had to privilege speech, and everything that links the sign to phone". Derrida will prefer to follow the more "fruitful paths (formalization)" of a general semiotics without falling into what he considered "a hierarchizing teleology" privileging linguistics, and to speak of "mark" rather than of language, not as something restricted to mankind, but as prelinguistic, as the pure possibility of language, working everywhere there is a relation to something else.