Eagles, larks and birdhunters

The bird hunter uses a mirror to catch birds. After a while, a lark was attracted by the shadow of a bird in the mirror, which it mistook for one of its companions. Just as the lark was skipping near the mirror, an eagle flying in the blue sky spotted it, and threw himself down from a high altitude towards the lark singing merrily in danger. At this time, the larks may be caught by the bird catcher's organ, and there is the danger of being caught by the eagles. However, when the eagle and the lark were close at hand, the eagle fell into the trap of the birdcatcher, and the lark flew away unharmed.

"Please let me go, I have children to feed!" How poor they will be if they lose their mother!" The eagle pleaded to the bird-catcher with tears in his eyes. "Besides, I have done you no harm!"

"But when did that lark harm your good?" "Replied the birdhunter.

The moral of this story is: if you do evil yourself, don't complain about others.