1. Different authors: The Book of Commandments was written by Zhuge Liang, prime minister of Shu and Han Dynasties in the Three Kingdoms period, and Disciples Rules was written by Zhang Zhi, a famous calligrapher in the Eastern Han Dynasty.
2. The purpose of creation is different: The Commandment aims to encourage sons to cherish time, study hard, cultivate self-cultivation and aim high. The Commandment aims to warn nephews to be modest and prudent, treat others with courtesy and not be arrogant.