What kind of things can attract our attention? What kind of mistakes can we learn from? Always attract your attention after making mistakes; Always introspect after making a big mistake. Why can't a small matter attract our attention? "Small mistakes are constant, and big mistakes are not made." This is a sentence that we middle school students often say. However, such a trivial matter should not be underestimated. In Germany, every German is very strict and meticulous. An international student from China evaded the ticket by bus three times in Germany, only to find that it was included in the file of this international student. The foreign students succeeded in their studies and took their own files to find jobs, but they were rejected by the strict Germans. The foreign students retorted that the Germans said, "The chance of escaping by bus is one in ten thousand." The quality of this international student can be imagined. What can you do without violating the principle if you even skip the ticket by bus? In nature, a butterfly flapping its wings slightly will cause a tornado. The reason is that the movement of butterfly wings leads to the change of the surrounding air system, which produces a weak airflow and causes a series of changes, thus leading to the emergence of tornadoes. So small things should also attract our attention. Not only in daily life, dealing with people, but also some small things in nature should attract our attention. To avoid mistakes, we should pay more attention to scientific work. During the Soviet era, a space plane was launched for space exploration and returned after the exploration. The plane entered the atmosphere and prepared to slow down and land. Ground personnel are ready at the scheduled landing site. At this time, the astronauts found that no matter how to operate, the slowed parachute could not be opened. So, I reported this situation to the space center, but this situation could not be solved, so I made a space report before the crash of the flying ship, and finally the spacecraft crashed. After inspection, the staff found that a decimal point was ignored during the ground inspection of the spacecraft. This incident shows that there is no difference between size and size. A blank sheet of paper and a black spot ruined its purity, a space flight was wasted because of a decimal point, and a hurricane flapped its thin wings against the butterfly, all because of a small matter. "Don't step, not Wan Li road. If you don't accumulate small streams, you can't become rivers and seas. " Everything should start with small things, as the saying goes, "a levee of a thousand miles will collapse in an ant nest." A small mistake can also lead to irreparable losses. If you want to succeed, you must start with small things.