Truth, like gold, is to be obtained not by its growth, but by washing away from it all that is not gold.
真理如同金子，不是靠它的增长，而是靠洗去一切不是金子的东西来获得。
释义：有了过错却不知道的人是被蒙蔽，迷失了方向还不返回的人是迷惑。这是对自知之明与迷途知返重要性的阐述。