이세
At the time that Zheng Tan and Li Shi served as chancellors, the eunuchs, led by Qiu Shiliang, often tried to humiliate the imperial officials by citing the examples of Li Xun and Zheng Zhu. It was said that Li Shi and Zheng Tan responded by pointing out that Li Xun and Zheng Zhu had initially been recommended to Emperor Wenzong by the eunuch Wang Shoucheng. Thereafter, it was said that the eunuchs' arrogance subsided somewhat, and the imperial officials depended on Li Shi and Zheng Tan to protect them. Soon thereafter, there was an incident in which, when the eunuch Tian Quancao () returned to the capital, he had remarked that when he got to the capital he would slaughter the officials, causing a general panic in Chang'an. Zheng suggested to Li Shi that they find refuge when Tian was approaching Chang'an, but Li Shi refused, pointing out that if even the chancellors fled, the panic would overtake the capital entirely, and that if there were to be disaster, they would not be able to get away anyway. Zheng agreed. Subsequently, Zheng and Li Shi urged that the relatives of Li Xun and the other executed officials be no longer pursued.