The greatness of Tsong Khapa as a Mādhyamika philosopher lay in his daring originality (which, to the chagrin of his opponents, he traced to a revelation from Mañjuśrī, the bodhisattva of wisdom) and his stress on human reason as an integral factor in the path to enlightenment, a stress which made him value above all a form of Madhyamaka which was systematically coherent. Tsong Khapa's interpretation of Madhyamaka ranges across the entire Madhyamaka corpus, organizes, clarifies obscurities and, above all, makes sense (which is not the same thing as saying that it is true). Madhyamaka thought can be difficult, and in the hands of a scholastic thinker whose temperament and outlook was akin, I suspect, to Aquinas, so Madhyamaka thought becomes extremely difficult. Tsong Khapa moulded Tibetan into a language of considerable philosophical subtlety and sophistication. His writings are renowned for their difficulty among Tibetans, and they are despairingly difficult to translate.