। ॥
In plain words
The Vedas have been turned over in the mind again and again; their own teaching has never once been overturned; they stand at the furthest edge of what can count as valid knowledge. And this — just this — is where all of them arrive.
Close to the Sanskrit
Of those pondered again and again, of those whose own teaching is utterly uncontradicted, of those whose furthest limit is authoritativeness — of all the Vedas, this alone is the conclusion.