《论衡·卷六·福虚篇》
石头本性坚硬，兰草生来幽香，如果说孙叔敖的贤行只在埋蛇的时候，那就不是生来就从天那儿禀承了善性。
石生而坚，兰生而香。如谓叔敖之贤在埋蛇之时，非生而禀之也。
Stone is intrinsically hard, and orchids are naturally fragrant; if we say that Sun Shu’ao’s virtuous deeds only began when he buried the snakes, then it wouldn’t be the case that he was innately endowed with goodness from Heaven.