One small step causes long-term regret. I think everyone has learned a text, and the specific name is not clear. But I will never forget what's in it. It's about an astronaut who was killed in a spaceship waiting to fly. The reason is that he changed an international unit, but thought it was a domestic unit, just a small unit. The mistake was small, but it led to such a big mistake. This so-called small mistake leads to a big mistake.

This is a lesson that often appears in life. It tells us that we can't just see the immediate interests and ignore the long-term development.

By my side, some students are unwilling to study hard in order to covet temporary happiness. They think that as long as they are happy now, they don't care if they can go to a good junior high school or high school in the future. This idea makes me feel very sorry. Because only by studying hard can we lay the foundation for a happy life in the future.

Some students will copy other people's homework in order to get others' appreciation. Although he was praised temporarily, this behavior not only damaged his own integrity, but also may lead to serious consequences. We must understand that honesty is the cornerstone of a person, and once it is lost, it is difficult to recover.

So, how to avoid penny wise and pound foolish? First of all, we should establish correct values and realize the importance of learning. We should understand that only through our own efforts can we realize our dreams. Secondly, we should learn to resist temptation and stick to principles. When we face the temptation, we should ask ourselves: Is this really the right thing to do? What consequences will it bring to me?

Finally, I want to remind you that the phenomenon of losing big because of small exists not only in study, but also in all aspects of life. We should always be vigilant, cherish the immediate happiness and lay a solid foundation for long-term development.

In short, as a primary school student, we should understand the truth of losing big because of small. Let's study hard, realize our dreams and lay a solid foundation for our future. Only in this way can we continue to move towards higher heights on the road of growth.