Complex sentence: The earliest known commentary on "Guan ju" is contained in the "Analects", and is attributed to Confucius: "The Master said," In the "Guan ju" there is joy without wantonness and sorrow without self-injury.
Split into simpler sentences: The earliest known commentary on "Guan ju" is contained in the "Analects", and is attributed to Confucius. Confucius praises "Guan ju" for its moderated emotions: "The Master said," In the "Guan ju" there is joy without wantonness and sorrow without self-injury.