水滴石穿 [ㄕㄨㄟˇ ㄉㄧ ㄕˊ ㄔㄨㄢ; shui3 di1 shi2 chuan1] dripping water penetrates the stone (idiom); constant perseverance yields success You can achieve your aim if you try hard without giving up. Persistent effort overcomes any difficulty. ◄ ►