If you do things sloppily, perfunctorily, or not seriously, you will easily make mistakes. If things go on like this, many hidden dangers or loopholes will be left. Problems will accumulate and interfere with each other. If you focus on one thing and lose the other, you will achieve nothing and eventually inevitably lead to fail. This is what is said in the saying, "A slightest difference will lead to a loss of thousands of miles" and "A long embankment of a thousand miles will be destroyed by an ant nest". Therefore, you must not be careless in doing things. When a tall building rises from the ground, every brick and tile must be solid. When you are responsible for everyone, you are also responsible for yourself. Therefore, only by developing the habit of being serious and meticulous and improving the success rate of doing things can you achieve your career and become a useful person.