 The later Mohist texts present a more detailed and sophisticated version of the same basic approach, grounded in the core notions of fǎ 法 (models), zhòng 中 (matching), shì/fēi (this/not-this) 是非, and biàn 辯 (distinguishing). They continue the search for objective standards of shì/fēi by which to guide action and judgment, and they explore numerous philosophical issues arising along the way. For instance, every shì/fēi distinction divides the world into what is and is not a certain thing or kind of thing. But why divide things up one way rather than another? What is it about particular things that makes them fall on one side of a distinction rather than the other? In practice, how do we make the similarity judgment needed to determine which side a particular thing belongs on? Shì/fēi distinctions are associated with “names” (míng 名) and thus with language. How do these distinctions underpin language and explain communication? What is their relation to knowledge? 