Literature Reference: 铭刻金石，柯叶长青。—— 《诗经·小雅·鹿鸣》 Inscribed on metal and stone, the leaves of the oak remain evergreen. Source from 'The Book of Songs·Xiao Ya·Lu Ming'.
铭: To engrave in memory and in heart. Practicing gratitude and filial piety fosters the making of virtuous connections and attracts the favor of noble souls.
柯: The handle of an axe. By extension, it signifies a rule or principle.
Meaning: Inscribed on metal and stone symbolizes eternity, while the evergreen oak leaves represent resilience and vitality.