Since air is an essential element for survival, its value is infinitely high; however, because it can be obtained anywhere, its price is effectively zero. Nevertheless, pure 100% oxygen is rare and can have a price. The distinction between value and price is important, but many people don’t understand how they differ. Exclusivity of supply is necessary to assign a price to something’s value. Exclusivity means only you can supply it, and people can only buy from you. Time also makes exclusivity. That is the message that you cannot buy it without now. Universality creates value, and scarcity creates price, thereby placing a value on that value. But these two contradict each other. Wealth is always built on contradictions. That’s why business and investment can be so challenging. - 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”