**Comparative Study Should Be the Focus of Research on Language and Script**
This article argues that comparative methodology is essential to academic research generally, and especially to linguistics, enabling reliable, comprehensive understanding of phenomena, clarifying their origins and development, correcting long-standing errors, and opening new research directions. Languages, as tools of human communication, are never isolated; through prolonged contact, especially among geographically neighboring peoples, they mutually influence one another, producing language branches, families, and stocks with both shared and unique traits. Using Tibeto-Burman languages as an example, the author shows that languages at the family's periphery display hybrid characteristics: Yi language in Bijie, Guizhou (eastern edge) shares many features with Chinese, while Burmese (western edge) shares traits with Indo-European languages, and Liangshan Yi (central zone) shows features of both. The article concludes that studying a single language or dialect in isolation cannot yield a complete picture; only comparative research integrating geographic, historical, and neighboring-language relations can fully clarify such phenomena.
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