A person is born with feelings of envy and hate. If he gives way to them, they will lead him to violence and crime, and any sense of loyalty and good faith will be abandoned.
XunziIf the quickness of the mind and the fluency of the tongue are too punctilious and sharp, moderate them in your activity and rest.
XunziMusic is a fantastic peacekeeper of the world, it is integral to harmony, and it is a required fundamental of human emotion.
Xunzi