A young painter completed a painting. To get people's opinions about his painting skills, he put his painting at a crossing on a street and put up a board that read, Gentlemen, I have painted this work. Since I'm new, I might have made some mistakes. Please put a cross wherever you see a mistake."
When he came back in the evening, he was shocked (震惊的) to see that the whole painting was filled with crosses, He ran to his teacher and said, useless."
The teacher said, I'll let you know that you are a great artist. Just paint the same painting again and give it to me."
Then they went to the same street the next morning and put the same painting at the same place. The teacher took out another board which read, "Gentlemen, I have painted this work. I might have made some mistakes. I have put a box with colors and brushes just below. If you see a mistake, pick up the brush and correct it." Two days later, they came back to the place. The young painter was surprised to see that there was not a single correction.
If you want to help people improve their behavior (行为), you'd better learn how to help people change their behavior. Always remember not to judge (批评) yourself by someone else's criticism (批评), because you are the best judge to judge yourself.
