„Wittgenstein's analysis amounts to the result that only "'p' says p" is relevant for the theory of sense: everything belongs to psychology except the *sense* of the proposition. If a TLP proposition evidently speaks of the sense of the proposition "p", this talk must be isolated from the accidental aspect of the fact that A says, believes, thinks, etc.: what, on the other hand, is essential in the ψ-propositions for the sense of "p" must, in order to guarantee the autarky of sense, be reducible to the pure *linguistic act*: the "propositional sign, applied and thought out, is a thought" (TLP 3.5), the "proposition with a sense" (TLP 4): the propositional sign "p", if *applied* (thought), is the significant proposition "p" and in this respect *says* the fact p."