Studies commissioned by the national park have always focused on some narrow specialization, and progress in opening up new areas is slow. They could no longer satisfy his desire to know everything there is to know about the area.
國家公園每年委託學者做的研究報告都是針對特定專題，題材和研究領域的開發緩慢，已不能滿足他對大屯山系全面瞭解的渴望。