ㄧㄣˇㄕㄨㄟˇㄩㄢˊyǐnshuǐ‑sīyuán

饮水思源
  1. 來源比喻忘本 飲水思源什麼時候不能父母養育」。

lit. when you drink water, think of its source (idiom)​; gratitude for blessings and their well-spring, Don't forget where your happiness come from., Be grateful for all your blessings!
Gedenke der Quellen, wenn Du trinkst (Sprichw)​