為德不卒

Simplified: 为德不卒

wéidébùzú ㄨㄟˊ ㄉㄜˊ ㄅㄨˋ ㄗㄨˊ

    • to start on virtue but give up (idiom) to fail to carry things through
    • lack of sticking power
    • short attention span

Character by character

Sources