When Edison developed electric lights, he failed many times. When he used more than a thousand kinds of materials to make filaments, the assistant said to him: "You have failed more than a thousand times, and your success has become elusive.

When Edison developed electric lights, he failed many times. When he used more than a thousand kinds of materials to make filaments, the assistant said to him: "You have failed more than a thousand times, and success has become slim, so give up!" Edison said, "So far I have gained well, at least I have found that there are more than a thousand kinds of materials that cannot be made of filaments." Finally, after thousands of experiments, he finally succeeded.

We know from this story that setbacks in life are part of our growth. In the face of setbacks, we may feel lost, anxious, sad, angry, dissatisfied, etc. It is normal to have these negative emotional feelings, and we need to adjust ourselves in time and deal with setbacks correctly.