Literature Reference: 纪,法也;恒,久也。—— 《说文解字》 Ji means law; Heng means eternity. Source from 'Shuowen Jiezi'.
纪: The original meaning refers to the end or thread of scattered silk, which metaphorically extends to signify age, years of life, principles, and systems.
恒: Eternity, unwavering perseverance.
Meaning: Adhering to discipline and persevering with unwavering determination.