Kuo's strategy is to highlight the difference between tiny Yuguang, with a graduating class of one, and the giant urban primary schools that have a dozen classes in each grade. He wants to make Yuguang stand out as the "purple cow" in the educational herd.
這就是郭雄軍追求的「紫牛效應」，相對於一個年級十多班的都會小學，只有一名畢業生，位於雲霧飄渺山林間的漁光國小，就是牛群中那一頭特殊的教育紫牛。