The landlord just deleted and added! Many times we are tired, and we will always have this experience. In the process of our progress, obstacles and development (that is, progress) will always appear alternately. It is precisely because of this that our progress is healthy and sustainable. Once upon a time there was a grassland where there were deer and wolves. The number of deer is always around 40 thousand. The herdsmen thought that the existence of wolves hindered the development of deer, so they killed all the wolves and the number of deer began to break out. However, something unexpected happened, and the grass on the grassland could not feed the increased deer herd at all. A year later, the number of deer dropped sharply, and grassland desertification was very serious. Why is this happening? According to the survey, under the normal ecology, the number of deer is actually constantly changing. When its number increases, wolves become more because of the increase in food. The increase of wolves led to the decrease of deer. From this perspective, the temporary development of deer will lay the groundwork for the short-term obstacles in the future. When the number of deer decreases, it is a temporary obstacle that creates future development. It is precisely because of this staggered obstacle and progress that there is a dynamic balance. If one link is destroyed, the whole balance will be disturbed or destroyed. This kind of obstacle and progress alternate and contain each other, so that things can develop for a long time without going to extinction soon. Obstacles and progress are not only mutually contained, but also mutually transformed. There was a middle school student whose parents chose literature for him. After studying for only one semester, the teacher concluded that although he worked hard, he was too rigid. Even if his moral character is perfect, it is difficult to achieve anything in literature. This is both a shortcoming and an obstacle. Later, a chemistry teacher, knowing his situation, suggested that he change to chemistry. Because he is too serious and suitable for doing chemical experiments, his shortcomings come in handy. The shortcoming is still that shortcoming, but in a blink of an eye, its nature has changed from an obstacle to a driving force for progress. The student really found his own world in chemistry and finally made a difference. On the contrary, a scientist won a considerable prize for an invention. At that time, scientists usually put them into experiments as a driving force for research and progress. But he put all his money into improving his life. After a period of time, his thinking is not as clear as before, which makes people feel powerless. The reason is that excessive enjoyment makes him lose his original diligence and wisdom, and his motivation becomes an obstacle. The seemingly opposite obstacles and progress actually have a subtle relationship. There are many differences in the seemingly convertible relationship, which is the relationship between obstacles and progress.