Whenever a gentleman was drawn by his reputation to pay him a visit, however, Hsu would withdraw and disappear, leaving behind a poem on the walls of his grass hut: I've lived in seclusion for thirty years, My hut built on a peak of South Mountain. In the quiet night I enjoy the bright moon; In the idle morn I sip from jasper springs.
三十餘年間，為人慈善的許宣平常救人疾苦，遠近馳名，只是士人聞名訪見，他卻避不見面，只在草庵壁上題詩：「隱居三十載，築室南山巔；靜夜玩明月，閒朝飲碧泉。