tasmād gatyantarāsambhavāt svataḥsarvapramāṇānāṃ prāmāṇyam, parato 'prāmāṇyam iti gṛhyatām /
Therefore, since there is no other alternative possible, it must be accepted that the validity of all pramāṇas is intrinsic, [while] invalidity is extrinsic.