The c. 4th-2nd centuries BCE "Mozi" (of Mozi) mentions them with the legendary Nine Tripod Cauldrons, namely, a set of Chinese ritual bronze "ding" "tripod cauldrons", said to have been cast by mythical Yu the Great after controlling the Great Flood. In response to criticism from his disciple Wu Mazi (巫馬子) that "To leave contemporaries alone and to praise the early kings is to praise rotten bones", Mozi (c. 470-391 BCE) explains how a state's "yi" ("righteousness; justice") is more important than the ritual "efficacy" ("lì", "benefit; profit") of its treasures.