Zengzi (Tsang) (Chinese: 曾子; 505 BC – 436 BC), born Zeng Shen (曾參), courtesy name Ziyu (子輿), was a Chinese philosopher and student of Confucius.

He is credited with having authored a large portion of the Great Learning, including its foreword. Zengzi's disciples are believed to have been among the most important compilers of the Analects of Confucius and other Confucian classics.

Ma Rong (simplified Chinese: 马融; traditional Chinese: 馬融; 79 – 166), courtesy name Jichang (季长), was a commentator of the Han Dynasty. He was born in modern Xianyang, Shaanxi in former Fufeng (茂陵) county. He was known for his commentaries on the books on the Five Classics, and the first scholar known to have done this. He also developed the double column commentary while doing it. His main students were Lu Zhi and Zheng Xuan.

He was suspended for ten years due to critical comments. Eventually he was restored to the Governor of Nan commandery (modern Hubei). His biography appears in the Book of Later Han. He wrote the Rhapsody on Long Flute (長笛賦), and possibly another work known as the Classic of Loyalty (忠經).