《明史·列传·卷一百六十九》
有灵芝生长于 尧祠 栋梁上，士民都说是万观德行感化的结果，万观说： 我只知谨于职守，灵芝与我无关。 
有芝生尧祠栋上，士民皆言使君德化所致。观曰： 太守知奉职而已，芝，非吾事也。 
 There was a Ganoderma lucidum growing on the beam of Yao’s temple, and the residents all said that it was the result of Wan Guan’s virtue, but Wan Guan said: “ I only know to perform my duty, and the Ganoderma lucidum has nothing to do with me.”