飲水思源 [ㄧㄣˇ ㄕㄨㄟˇ ㄙ ㄩㄢˊ; yin3 shui3 si1 yuan2] 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! ◄ ►