Self and ultimate reality › What negation can and cannot establish

The expression neti neti, usually rendered “not this, not this,” appears in Brihadaranyaka 2.3.6. It should not be confused with a verbatim speech inside the adjacent Maitreyi dialogue. The passage uses negation in its teaching about Brahman. It warns against treating a limited characterization as an exhaustive account of what is being investigated.

Negation has an intelligible role. If the question concerns the ground of the distinctions through which we describe particular things, describing that ground as one more particular thing could miss the point. An analogy would be trying to explain a rule solely by listing one of its applications. The example clarifies a possible mistake; it does not establish what Brahman must be.

A further difficulty remains. If every positive description is inadequate, how can the teaching assert anything definite? Saying that language points beyond itself can describe a pedagogical intention, but does not guarantee that it succeeds. The reader must examine whether the negations rule out definite misunderstandings and whether enough content remains to distinguish the teaching from an empty assertion.

For this reason, the question about the knower and the use of negation should be read alongside the texts' affirmative instructions. The passages discuss reality, desire, learning, and liberation; they do more than forbid speech. Their philosophical interest lies partly in this tension between what is said and the limits assigned to saying it.