《太平广记·卷七十六·方士一》
他跟吴国人永石先生学习道术，学满三年时，赵廓要求回齐，先生不满地说： 你的道术还没有全部学到手，怎么可以回去呢？ 
学道于吴永石公，三年，廓求归，公曰： 子道未备，安可归哉？ 
He studied Taoism with Mr. Yongshi from the state of Wu, and after three years of study, Zhao Kuo asked to return to Qi, and the teacher said with dissatisfaction: “You haven’t mastered all the Taoist techniques, how can you return?”