Idiom Story Licking and nurturing

The literary scholar Yang Xiu at the end of the Han Dynasty was brilliant and talented. At first, Cao Cao, the chancellor of Wei Dynasty, admired him very much and made him the master of the book. Once, Cao Cao led his troops to attack Hanzhong, suffered a defeated battle, and passed down the order of "chicken ribs". Yang Xiu guessed cao Cao's desire to collect the troops, so he began to pack his bags. When Cao Cao found out, he used Yang Xiu to disturb the hearts of the army and beheaded him. Shortly after Yang Xiu's death, one day, Cao Cao saw Yang Xiu's father, Yang Biao, and asked, "Are you unwell?" Why is it so thin? ”

Yang Biao did not answer directly, but said: "The Xiongnu nobleman Jin Ri was a close vassal of Emperor Wu of Han, and his two sons were taken to the Han Palace to be raised. Later, Kim Il noticed that his two sons were committing adultery in the harem, so he killed them one after another. I'm ashamed that I didn't have the foresight of Kim Il and didn't educate my son well, so that he ended up like this. Yang Biao continued, "You look at the old cows in the field, after ploughing the field, they are always together with the calves, and from time to time they lick the calves with their tongues, and see them so affectionate, teach me how not to miss my son?" After Yang Biao finished speaking, the old tears flowed. Cao Cao listened, and his heart was sad and ashamed.