反哺之情 (fǎn bǔ zhī qíng): The natural affection and gratitude children feel toward their parents — Meaning & Stroke Order

After becoming successful, this entrepreneur did not forget his filial gratitude and built schools and a hospital in his hometown.

She gave up a high-paying job to return home and care for her parents; this is a manifestation of filial gratitude.

Our parents raised us, so we should have a sense of filial gratitude and repay them well.

Crows feed their parents, lambs kneel to suckle—even animals have filial gratitude, let alone humans.