Once upon a time, there lived a kind of bird in the primeval forests of South America. This bird was emerald green with circles of gray texture, like circles of waves, so it was named the Turtle Bird.

　　Although this bird is beautiful, it is busy building nests every day, so it looks listless and very tired.

　　The only feature of the Turtle Bird's nest is that it is huge, and each nest is built on a tree, which is a spectacular scene.

　　But these huge nests can't help but make people wonder. The Turtle Bird is a small bird, only five or six centimeters long, but why do they build nests that are several times or even more than ten times larger than their bodies?

　　In order to solve this mystery, an animal scholar did an experiment.

　　He made a huge cage and caught a Turtle Bird to observe its nesting process.

　　But what he didn't expect was that the Turtle Bird only built a nest that could accommodate its own body size, and then stopped working.

　　This aroused great interest among scholars, and he caught another Turtle Bird and put it in the cage to see how it built its house.

But this time, the situation changed suddenly. Not long after the bird was put into the cage, it began to build a nest vigorously, and the one that had stopped building also began to expand the nest frantically. The two nests became larger and larger.

After a few days, the two birds were obviously exhausted and the construction speed slowed down.

After a few days, the one that was originally sent in died, and after the death of this bird, the other one immediately stopped building a nest. These phenomena are really puzzling.

The scholar then caught another green wave bird and put it in the cage. The situation was the same as before.

The scholar fell into deep thought and suddenly realized that the reason why the green wave bird was busy was comparison.

This kind of bird has a strong comparison mentality and cannot tolerate other people's nests being bigger than its own. Once it finds that other birds have built a new "house", it will keep busy expanding its nest... In the experiment, both birds were actually exhausted to death.

In fact, life is just like the green wave bird building a nest. If you want to be truly happy and live a relaxed life, you can't always use others as a reference. Many times, you just need to be satisfied with yourself.

For anyone and anything, just do your best. That's enough.

　　Don't make your body too tired, and don't let your heart be filled with sadness.

　　If you always stare at other people's lives, you will not see your own happiness.

　　If you don't fight, you will feel relaxed; if you don't compare things, you will have a smooth journey; if you don't ask for anything, you will have a peaceful life.

　　May you be a contented person, let your family be stable, be sincere to your friends, be happy, and be passionate about life.