Sarvadarshanasangraha 2.68

2.68

gurūktaṃ bhāvanācatuṣṭayaṃ bāhyārthasya śūnyatvaṃ cāṅgīkṛtyāntarasya śūnyatvaṃ cāṅgīkṛtaṃ katham iti paryanuyogasya karaṇāt keṣāṃcid yogācāraprathā/ eṣā hi teṣāṃ paribhāṣā: svayaṃvedanaṃ tāvad aṅgīkāryam/ anyathā jagadāndhyaṃ prasajyeta/ tat kīrtitaṃ dharmakīrtinā:

In consequence, then, of these four points of view, when all ideas are come to an end, final extinction, which is a void, will result. Accordingly we have overtaken our end, and there is nothing to be taught to us. There consequently remain only two duties to the student—interrogation and acceptance. Of these, interrogation is the putting of questions in order to attain knowledge not yet attained. Acceptance is assent to the matters stated by the sacred teacher. These (Bauddha nihilists) are excellent in assenting to that which the religious teacher enounces, and defective in interrogation, whence their conventional designation of Mādhyamikas (or mediocre).