One of the key principles of money is ‘opportunity cost.’ It means that when I buy something, I have to give up something else in return. We think we buy because we need something, but we often forget that we could buy something else instead. We rarely consider ‘opportunity cost’ when making a purchase. We do not compare other values against our needs. Buying something means giving up something else, but we often don’t realize it. When we spend money, we should also consider the ‘opportunity cost’; yet, in reality, we aren’t trained to do so. By making a purchase, we bypass the value comparison that may not offer any additional benefits. Maybe it’s because we lack knowledge, or perhaps the idea isn’t appealing. - Joseph’s “just my thoughts”
Knowing and doing are two very different things. Zhuge Liang, an incomparable genius who was a Chinese prime minister of the Three Kingdoms, knew the deep secret of nature. However, he suffered a great defeat in the most important battle because he wrongly appointed Ma Su as his subordinate general, even though he knew him well and had received a warning about his appointment from the late king. Personnel management is the most difficult thing in the world, and to manage it well is the key to success. - Joseph's "just my thoughts"