劣幣驅逐良幣 [ㄌㄧㄝˋ ㄅㄧˋ ㄑㄩ ㄓㄨˊ ㄌㄧㄤˊ ㄅㄧˋ; lie4 bi4 qu1 zhu2 liang2 bi4] bad money drives out good money (economics) ◄ ►