He argues that it was Cai Lun who drew from the experience of those who went before him, refining his techniques to the point where paper could be used for writing. This advance constituted a great leap forward in the progress of human civilization.
因此蔡倫依然是紙的發明者，是他總結前人的經驗，把造紙技術提昇到可以書寫的階段，對人類文化產生巨大貢獻。