 Towards the very end of his life, in his Medium-Length Exposition of the Path and Elucidation of the Intention Tsongkhapa defends his views against Rongtön's (rong stong shes bya kun rig) (1367-1449) criticism that his earlier and later works are inconsistent. Tsongkhapa extends his comparison of Candrakīrti's and Bhāviveka's interpretations of Nāgārjuna to more clearly identify a less subtle object of negation in the works of Yogācāra-svātantrika-madhyamaka writers, particularly Jñānagarbha (8th century) and Śāntarakṣita (Hopkins 2008, Part One, Yi 2015). Tsongkhapa finds in their works an analysis leading beyond the Yogācāra's mere absence of a substantial difference between known object and knowing subject, but limited insofar as it negates the ultimate truth of all objects appearing to conventional awareness while still allowing room for an object of negation that does not appear to sense perception. 