Traditional education taught that human economic development progressed from hunting to stock farming and then to agriculture. However, the only real difference is that stock farming is an economic method of obtaining food by domesticating livestock, while agriculture involves domesticating plants. Therefore, this three-stage development theory is no longer accepted. Instead, the development of human civilization can be seen in the evolution of transportation. To understand the nature of how the world changes, we should observe the development of transportation. The increasing speed of movement is the main evidence that society is changing rapidly. - Joseph’s “just my thoughts”
The hospital is where patients are healed. Therefore the hospital is full of patients. The hospital must be able to keep patients healthy and accommodate many patients at any given time. The church is a place to call sinners. There are undoubtedly many sinners in the church. But what if there are only sinners who do not repent? Filters are tools that get rid of dirty things and clean them. If we don't clean it, it's the dirtiest. "Self-purification" restores the original substance. If the instructor omits "self-purification," the absurd result will occur as in the previous example. Don't be sad or angry even if life deceives you. - Joseph’s “just my thoughts”