《荀子·乐论》
对外用音乐作为征伐的工具，那就没有人不听从；对内用音乐作为礼让的手段，那就没有人不服从。
出所以征诛，则莫不听从；入所以揖让，则莫不从服。
Use music as a tool to attack and punish enemies externally, and no one will not obey; use music as a means to carry out courteous behavior internally, and no one will not submit.