薰蕕不同器 [ㄒㄩㄣ ㄧㄡˊ ㄅㄨˋ ㄊㄨㄥˊ ㄑㄧˋ; xun1 you2 bu4 tong2 qi4] lit. fragrant herbs and foul herbs do not go into the same vessel (idiom) bad people and good people do not mix ◄ ►