《水经注·卷八》
他们两人虽然一个尚素朴，一个重华饰，生活作风迥然不同，但都以能与外界隔绝，闭门静修而受人称道。
即此谷也。水亦谓之琨瑞水也。
Although the two of them were one Shang Su and the other Chong Huashi, their lifestyles were very different, but they were both admired for being able to be isolated from the outside world and to retreat in silence.