At that time he followed the research of his Japanese teacher Kanda Kiichiro, and absorbed a lot of knowledge about documents and texts, which proved helpful to his later collection and use of materials.
那段期間，他跟隨日本老師神田喜一郎作研究，吸收了許多文獻及版本學的知識，對日後資料蒐集及運用上有極大的幫助。