yadeva hi vsatu pratyakṣeṇa yathā viṣayīkriyate tatra pratyakṣaprasiddhe viparīto dharmo 'bhyupagamyamānaḥ pratyakṣeṇa bādhyate
For only when an object is cognizable through perception, and a contrary property is accepted regarding what is well-established through perception, [then] it is invalidated by perception.