I can tell you for sure that this sentence is very reasonable. In today's words, when people are idle, their troubles begin to increase. When they are lazy, all kinds of diseases will come to you. When they are busy, they will feel that life is full of happiness. Of course, this is the case.

For example, we all feel this way in real life. Whenever we are free, we can't help thinking, sometimes these messy things will make us feel bad. But when I get busy, I feel different. I will forget all this, and once I am busy, you will find that time passes very quickly, and even sigh why time passes so slowly that I can do more things.

In addition, in real life, lazy people will find that their health is much worse than those who exercise diligently every day. Take mountain climbing as an example. Those with good physical fitness can climb to the top of the mountain in one breath, those who don't exercise regularly will be panting every few steps, and they will have to rest for a few days after climbing the mountain.

Even some people are too lazy to get sick, for example, people who often play mobile phones or read books in bed will suffer from cervical spondylosis to some extent.

Besides, when you are busy, you will find that your whole person is in a good mood. Even if this job is a little tired, you are still very happy, because you can find your own value in this job, and many interesting things may happen in the process of work, so people must be busy.