We think Pao Ching-yen was the thinker in 4 C, (A.D). We can know his thougt only at Chieh-Pao pien(詰鮑篇) in 'Pao-pu tzu'(抱朴子), written by Kê Hung (葛洪). In this article, I've shown Pao Ching-yen's thought which didn't recognize the monarchy, is connected with Ta-jen hsien sheng chuan (大人先生傳) written by Yuan Chi (阮籍).