However, there is a limit to the role that reflection on psychology plays in the analysis of meaning. For early Mīmāṃsā philosophers, only Sanskrit terms have genuine expressive capacities.This conclusion is not due to an investigation of the psychology of non-Sanskrit speakers, but the principle of parsimony. It is explanatorily better to posit a fundamental language, where word and meaning are fixed in one-to-one correspondence, which has been corrupted by mispronunciation over time (see TV 1.3.24ff). So, hearing a foreign word like gavi, people understand its meaning, “cow,” through its similarity with the correct Sanskrit word (gauḥ), whether or not they are aware of the process. This view is challenged by other philosophers, such as Dharmakīrti in his Vādanyāya (Norms of Debate).