《资治通鉴·汉纪·汉纪四十七》
杜密一向和李膺声名相等。当时人们并称李、杜，所以他俩同时被捕入狱。
杜密素与李膺名行相次，时人谓之李、杜，故同时被系。
Du Mi was equally famous with Li Ying. At that time, people called them Li and Du, so they were arrested and imprisoned at the same time.