The University of Nalanda c7.121

c7.121

While Buddhism was thus developing on its philosophical side, the followers of other philosophical systems were not sitting idle. Vārṣagaṇya, Īśvarakṛṣṇa and Vindhyavāsa,³ restated the Sāṃkhya doctrine, while Vātsyāyana wrote commentaries on the Nyāya Sūtras. But in opposition to the Sāṃkhya-Saptati of Īśvarakṛṣṇa, Vasubandhu composed the *Parmārtha Saptati*, and destroyed his tenets and thus re-converted King Bālāditya (Narasimhagupta) from Sāṃkhya to Buddhism. Vasubandhu lived in A.D. 420-500.⁵ Besides the work last mentioned he commented on the following Mahāyāna Sūtras :—