49. "In the fourth case, owing to what, with reference to what, are some honorable recluses and brahmins eternalists in regard to some things and non-eternalists in regard to other things, proclaiming the self and the world to be partly eternal and partly non-eternal?
"Herein, bhikkhus, recluse or a certain brahmin is a rationalist, an investigator. He declares his view hammered out by reason, deduced from his investigations, following his own flight of thought thus: 'That which is called "the eye," "the ear," "the nose," "the tongue," and "the body" that self is impermanent, unstable, non-eternal, subject to change. But that which is called "mind" (citta) or "mentality" (mano) or "consciousness" (viññāṇa) that self is permanent, stable, eternal, not subject to change, and it will remain the same just like eternity itself.'
"This, bhikkhus, is the fourth case.
50. "It is on these four grounds, bhikkhus, that those recluses and brahmins who are partial-eternalists proclaim the self and the world to be partly eternal and partly non-eternal. Whatever recluses and brahmins there may be who proclaim the self and the world to be partly eternal and partly non-eternal, all of them do so on these four grounds or on a certain one of them. Outside of these there is none.
51. "This, bhikkhus, the Tathāgata understands. And he understands: 'These standpoints, thus assumed and thus misapprehended, lead to such a future destination, to such a state in the world beyond.' He understands as well what transcends this, yet even that understanding he does not misapprehend. And because he is free from misapprehension, he has realized within himself the state of perfect peace. Having understood as they really are the origin and the passing away of feelings, their satisfaction, their unsatisfactoriness, and the escape from them, the Tathāgata, bhikkhus, is emancipated through non-clinging.
52. "These are those dhammas, bhikkhus, that are deep, difficult to see, difficult to understand, peaceful and sublime, beyond the sphere of reasoning, subtle, comprehensible only to the wise, which the Tathāgata, having realized for himself with direct knowledge, propounds to others; and it is concerning these that those who would rightly praise the Tathāgata in accordance with reality would speak.