Nothing in the world is difficult for one who sets his mind to it. When we enter the society, we find that the society is more cruel than we thought. If you want to change the status quo, you must keep learning. This uncle didn't always want to be a migrant worker, but he was admitted to the university by his own efforts. Although he is very old now, he has no choice to give up, because he firmly believes that hard work will pay off. As long as he keeps pace with the times, it is never too late to study.
The uncle told us that as long as we keep studying, we will gain something. In fact, we all know the living conditions of migrant workers. They are very hard. They get up early and get greedy every day, and the manual work on the construction site is very tired. They don't have more time to study after a busy day, but this uncle has overcome many difficulties. Even if he is tired again, he has to squeeze out some time to study and review his lessons. In this noisy environment, he never chose to give up, but kept asking himself to study hard.
This uncle told us with his own actions that the best chance to change his destiny was 10 years ago, and there is another one now. The steps we have taken before cannot be changed. The only thing we can do is to devote ourselves to study from now on, don't indulge ourselves, and strive to pursue what we like. Knowledge divides people into different classes, and learning is a real thing, so we must persist and work hard.