顾久念
[gù jiŭ niàn]
Gù jiǔ niàn literally means 'long memory', denoting the virtue of remembering the good deeds or the kindness received for a long time. As an idiom, 顾久念 reflects a strong sense of gratitude and filial piety in Chinese tradition, where one always remembers the past, respects ancestors, and cherishes meaningful relationships.