In logic and psychology, signs and language are usually foisted in somewhere as an appendix, without any trouble being taken to display their necessity and systematic place in the economy of intelligence. The right place for the sign is that just given: where intelligence—which as intuiting generates the form of time and space, but is apparently recipient of sensible matter, out of which it forms ideas—now gives its own original ideas a definite existence from itself, treating the intuition (or time and space as filled full) as its own property, deleting the connotation which properly and naturally belongs to it, and conferring on it an other connotation as its soul and import. This sign-creating activity may be distinctively named “productive” Memory (the primarily abstract “Mnemosyne”); since memory, which in ordinary life is often used as interchangeable and synonymous with remembrance (recollection), and even with conception and imagination, has always to do with signs only. § 459. The intuition—in its natural phase a something given and given in space—acquires, when employed as a sign, the peculiar characteristic of existing only as superseded and sublimated. Such is the negativity of intelligence; and thus the truer phase of the intuition used as a sign is existence in _time_ (but its existence vanishes in the moment of being), and if we consider the rest of its external psychical quality, its _institution_ by intelligence, but an institution growing out of its (anthropological) own naturalness. This institution of the natural is the vocal note, where the inward idea manifests itself in adequate utterance. The vocal note which receives further articulation to express specific ideas—speech and, its system, language—gives to sensations, intuitions, conceptions, a second and higher existence than they naturally possess,—invests them with the right of existence in the ideational realm.