《后汉书·列传·马援列传》
梁松去后，儿子们问道 ：梁松是帝的女婿，贵重朝廷，公卿以下莫不害怕，大人为何独不答礼他？ 
松去后，诸子问曰： 梁伯孙帝婿，贵重朝廷，公卿已下莫不惮之，大人奈何独不为礼？ 
After Liang Song left, his sons asked: Liang Song is the emperor's son-in-law, he is important in the court, and everyone below the high-ranking officials is afraid of him, why don't you reply to him alone?