言必信,行必果 [ㄧㄢˊ ㄅㄧˋ ㄒㄧㄣˋ , ㄒㄧㄥˊ ㄅㄧˋ ㄍㄨㄛˇ; yan2 bi4 xin4 , xing2 bi4 guo3] one must be a man of his word and resolute in his work (proverb) ◄ ►