The jester Guo Sheren 郭舍人is often paired with Dongfang Shuo, coming off worst in riddle-battles. Here, Sima Qian 司馬遷 tells us that this favourite jester of Emperor Han Wudi 漢武帝 (r. 141-87 BCE), although not deeply philosophical, nevertheless brought pleasure and delight to the emperor.
Source: `Guji liezhuan’ 滑稽列傳, in Shiji 史記, by Sima Qian 司馬遷 (c. 145-86 BC), annot. Pei Yin 裴駰 (Shanghai: Zhonghua Shuju, 1963), vol. 10, fol. 126, p. 3204.