聲音之風，感而動乎心。
Small variations in the voice produce deep responses in the heart.
甯戚擊牛角而商歌，桓公聞而舉之；鮑龍跪石而登嵼，孔子為之下車；堯舜相是，不違桑陰；文王舉太公，不以日久。
When Ning Qi tapped an ox’s horns and sang his mournful song, Lord Huan heard it and raised him to high position. When Bao Long knelt on a rock and ascended a steep precipice, Kongzi descended from his carriage in response.