Purva-Mimamsa in its Sources c19.s1.22

c19.s1.22

We have seen that the Veda is not the work of a Person or Author. This is proved by the fact that all words and things denoted by them are Eternal (see above), and there is no other means (save the Veda) available for the Knowledge of *Dharma*,—including as it does the notion of such supersensuous thing as *Apūrva* and the like; and the Veda itself, as only a collection of words speaking of such things, must be Eternal, and as such independent of all authorship.