Sima guang opposed Taoism's monograph "inaction?" "Zan" said: "To learn from Huang Zhi's old age is like a dead heart, but to move to Zhixia is like nothing. "

According to records, in the eighth year of Emperor Yangdi Yang Guang (6 12), Taoist Pan Dan was ordered to be Emperor Yangdi's "alchemist" for countless six years, but he was killed, which was a scam to thoroughly infiltrate Taoist alchemy. Sima Guang pointed out that Taoism's practice of "taking the bait" has deviated from the thought of "living with death" of Laozi and Zhuangzi, and denounced the absurdity of Taoism's practice of "taking the bait" and even the technique of "obsessing over water and forbidding spells": "A gentleman should not be careless in choosing techniques" and warned that he should pay great attention to what kind of theory to choose as his guiding ideology.