《史记·八书·乐书》
所以乐得以施行，就能使人沦类分明，不相混淆；耳聪目明，不为恶声恶色所乱；血气平和，强暴止息；风俗移易，归于淳朴，天下皆得乐享安宁。
故乐行而伦清，耳目聪明，血气和平，移风易俗，天下皆宁。
Therefore, if music can be implemented, it can make people clearly distinguished and not confused; with good hearing and eyesight, they will not be disturbed by bad sounds and colors; Blood qi is peaceful, and violence ceases; folk customs change and return to simplicity, and the world can enjoy peace.