[yǐn liú huái yuán, ㄧㄣˇ ㄌㄧㄡˊ ㄏㄨㄞˊ ㄩㄢˊ, 饮流怀源 / 飲流懷源] lit. when you drink water, think of its source (成语 saw); gratitude for blessings and their well-spring; Don't forget where your happiness come from.; Be grateful for all your blessings! [Add to Longdo]