What I spend is someone else’s income. Apple co-founder Steve Jobs discussed every morning at breakfast with his family about buying a set of Miele washing machines and dryers from Germany for two weeks. Why? Of course, it was to teach their children about economics and to illustrate a lesson about opportunity cost, a common trait among wealthy people. If you buy this washing machine, you cannot buy that one. That is the opportunity cost. It’s a form of relative value, based on the idea that choosing one option means sacrificing another, so the value of each can be compared within those limits. Wealth begins with training in understanding even trivial opportunity costs. To succeed in business, you need to learn how to measure opportunity cost first, rather than just how to make money. - 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”