Book of Documents
In his youth, Zhuge Jin visited Luoyang, the imperial capital, where he studied classical texts such as the "Mao Commentary on the Classic of Poetry", "Book of Documents", and "Zuo Zhuan". When his mother died, he went home and dutifully performed filial mourning. He also treated his stepmother in a courteous and respectful manner, which earned him fame for his filial piety.