Legendary Warring-States interlocutor of Lǎozǐ 老子, known only from Zhuāngzǐ 莊子 ch. 13 Tiān dào 天道, where he is described as a recluse-gentleman of Zhōu (周隱君子) who, “having travelled a hundred days and worn through his sandal-soles,” came to Lǎozǐ. He greets Lǎozǐ at first with insolence — “I had heard that you were a sage, and so I have come without grudging the long road. Then on entering the room I see your stores of grain stacked up like the wealth of an ordinary man — no different from a fool — and I cannot bear to look at it” — and only afterwards, sitting humbly with eyes lowered and asking “I beg to ask about self-cultivation,” receives Lǎozǐ’s reply: “The Way is not exhausted in the great, not abandoned in the small; vast in its all-encompassing nature, deep in its unfathomable depth; the perfected man takes hold of the root of things, and so transcends Heaven and Earth, leaves behind the ten thousand things, while his spirit is never wearied.” Through this exchange Shì Chéngqí is said to have “obtained something” (有得).
In Daoist hagiographical tradition, Shì Chéngqí (also written 士成子 Shì Chéng zǐ) is counted as the sixth of the shízǐ 十子 (“Ten Masters”) of Lǎozǐ’s lineage, and figures as such in Zhào Mèngfǔ’s 趙孟頫 Xuányuán shízǐ tú 玄元十子圖 (KR5a0164). His historicity rests entirely on the Zhuāngzǐ parable. No CBDB record.