滴水石穿 [ㄉㄧ ㄕㄨㄟˇ ㄕˊ ㄔㄨㄢ; di1 shui3 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. ◄ ►