 A distinctive feature of Tsongkhapa's mature philosophy is the centrality he accords hermeneutics, and the particular stratification of philosophical systems it occasions. His focus on hermeneutics stems in no small measure from his acceptance of the Kanjur as a true record of authentic statements of the Buddha, and also from his wish to discredit Dolpopa's views. According to Tsongkhapa, and worked out in detail in his Essence of Eloquence, the given record of the Buddha's diverse statements seems to contain contradictions, so a reader must decide on criteria for interpreting them. No statement of the Buddha can serve as a primary hermeneutic principle, so that principle necessarily becomes human reason (Sk. yukti, Tib. rigs pa).