[jīng chéng suǒ jiā, jīn shí wèi kāi, ㄐㄧㄥ ㄔㄥˊ ㄙㄨㄛˇ ㄐㄧㄚ, ㄐㄧㄣ ㄕˊ ㄨㄟˋ ㄎㄞ, 精诚所加，金石为开 / 精誠所加，金石為開] lit. sincere will can make rock split open (成语 saw); if you put your heart to it, you can break up metal and rocks; With a will, you can achieve anything. [Add to Longdo]