台Taivo A Taiwan Mandarin dictionary

飲水思源

yǐnshuǐsīyuán

ㄧㄣˇ ㄕㄨㄟˇ ㄙㄩㄢˊ

Simplified 饮水思源

1lit. when you drink water, think of its source (idiom); gratitude for blessings and their well-spring
2Don't forget where your happiness come from.
3Be grateful for all your blessings!

Keep 飲水思源 and it comes back until you know it.