 Directly following the rule-following sections in PI, and therefore easily thought to be the upshot of the discussion, are those sections called by interpreters “the private-language argument.” Whether it be a veritable argument or not (and Wittgenstein never labeled it as such), these sections point out that for an utterance to be meaningful it must be possible in principle to subject it to public standards and criteria of correctness. For this reason, a private-language, in which “words … are to refer to what only the speaker can know—to his immediate private sensations …” (PI 243), is not a genuine, meaningful, rule-governed language. The signs in language can only function when there is a possibility of judging the correctness of their use, “so the use of [a] word stands in need of a justification which everybody understands” (PI 261).