Subordinates make mistakes, see how the master Carnegie handled it?

3 years ago, Carnegie's niece, Josephine Carnegie, served as his secretary. She was only 19 years old, hadn't gone to college, and hadn't had any work experience. When she first started her job, she often made mistakes. At this time, Carnegie did not make fun of or ridicule her, nor did he criticize her harshly, but adopted a gentle and decent way to make her truly recognize her mistakes and then correct them.

One day, Josephine made another mistake, and Kanai basically wanted to blame her, but in the end he didn't say anything. Carnegie thought for a moment and said to himself, "Dale Carnegie, wait a minute, you're almost twice the age of Josephine, and you're several times more experienced, how can you ask her to be like you?" What's more, you're not very good. Also, you're not as good as Josephine when you're 19!"

At the thought of this, Carnegie did not blame Josephine, but said to her: "Josephine, I often made such mistakes when I was young, and I really have no right to criticize you." However, I am older and more experienced than you, and in my experience, you are not doing the right thing. Carnegie then began to tell her what to do, and she quickly corrected her mistake and didn't make the same mistake again.