"The only thing to do with good advice is to pass it on. It is never of any use to oneself."
解释:君主对发生在堂上、堂下、门廷之内的事都不知道,则虽是近处,却比百里、千里、万里之外更远。
孔子说:“读书不想事,越学越糊涂;想事不读书,越想越头痛。”