Abstract: Scientific spirit, originated in natural science, is also applicable to linguistics. Inviews of contemporary syntactic researchers, the essence of scientific spirit lies in the factthat natural languages share some universalities behind their complexities. Localization, on the other hand, tries to focus on the particularity of a language. Scientific spirit and localization, just like two sides of a coin, is well interpreted in two typical cases. Wh-words movement gives one case and Copular sentences between Chinese dialects give the other. In linguistic research, both scientific spirit and localization are both essential that prevents a practice of cutting the foot to fit the shoe and a one-way conversation.

Key words: scientific spirit, localization, uniformity, linguistic research, wh-word movement, copula