C119 He Is a Wise Man Again

After Zheng Xuan heard that, his entire body trembled. He held Xiao Yan's hand in surprise and said, "Who thought of this carving technique? In this way, books and books will be able to travel the world. Anyone with a desire for knowledge can read books, and this art is not inferior to Kong Meng's! "

Zheng Xuan had devoted his entire life to teaching and educating people. Otherwise