pauruṣeyatvasiddheś ca śaṅkyā duṣṭanimittatā / vahneriva svataḥ śaktir mithyājñāneṣu vā bhavet //
And since it has been established that [the Veda] has human authorship, the defectiveness of [its] source is suspect. If validity were an inherent capacity [in cognitions], like the burning capacity of fire, then such [validity] would have to exist in false cognitions as well.