Likewise in Tibet, Sakya Pandita (1182-28 - 1251), as well as later thinkers like Longchenpa (1308–1364) expanded on these philosophies in their tantric commentaries and treatises. The status of the tantric view continued to be debated in medieval Tibet. Tibetan Buddhist Rongzom Chokyi Zangpo (1012–1088) held that the views of sutra such as Madhyamaka were inferior to that of tantra, which was based on basic purity of ultimate reality. Tsongkhapa (1357–1419) on the other hand, held that there is no difference between Vajrayāna and other forms of Mahayana in terms of "prajnaparamita" (perfection of insight) itself, only that Vajrayāna is a method which works faster.