nahyanubhūtam ityevaṃ sarvātmanā niścayo jāyate kāraṇāntarāpekṣatvān niścayotpatter iti bahudhā pratipāditaṃ, tena gṛhītam api jñānasya svasaṃvido 'rthapramāṇasāmarthyaṃ bhrāntikāraṇasyāpramāṇasārūpyānabhyāsādeḥ sadbhāvān niścayānutpatter aniścitam ity ucyate /
Certainty does not arise in all aspects merely from something being experienced, because the arising of certainty depends on other causes — this has been explained many times. Therefore, even when cognition is grasped by self-awareness, its capacity to be a valid means of knowing objects remains uncertain, due to the presence of causes of error such as similarity [with invalid cognition], lack of repeated experience, etc., which prevent certainty from arising.