沒有規矩,不成方圓 [ㄇㄟˊ ㄧㄡˇ ㄍㄨㄟ ˙ㄐㄩ , ㄅㄨˋ ㄔㄥˊ ㄈㄤ ㄩㄢˊ; mei2 you3 gui1 ju5 , bu4 cheng2 fang1 yuan2] without rules, nothing can be done (idiom); one must follow some rules ◄ ►