Xun Yu hung his head helplessly. He didn't lack the desire to persuade; he simply could not do so. Not long ago, because of Bian Rang's matter, he had already advised Cao Cao with the words, "A wise ruler should not harm a person's kin, nor cut off their ancestral sacrifices. How can you do this today, my lord? Will the people of the world not do the same in the future?" And indeed, Cao Cao had spared Bian Rang's family.
The current situation was that Tao Qian had caused the death of Cao Cao's father. Whether it was intentional or unintentional, the fact remained that Cao Cao's father was dead. This left Xun Yu with no way to speak out, for the vengeance of patricide was insurmountable. In the era of the Han Dynasty, when it was considered justified to kill for friends, teachers, and relatives, avenging one's father was all the more righteous.