Salary isn’t just ‘my money.’ It’s money that should be spent considering yourself today, your future self in 10 years, and your future self in 20 years—that is, your future self together. Therefore, my current income is always, in a way, public money. We need to get approval from our future self before spending now. A bright future is only guaranteed if the future self agrees to the spending. It’s inconvenient to spend other people’s money on your own terms, and thinking of your own money the same way you see others’ cherished money will help you develop good habits for the future. I don’t have an exclusive claim to my own money, as if there’s no such thing as my own air in this world. - Joseph’s “just my thoughts”
When investing in a market where asset trading is ongoing, persistent, and prices are constantly fluctuating, the most important factor is the perception and attitude toward “time.” Here, time refers to a defined “period,” a concept that encompasses the “past,” “present,” and “future.” Knowing the future can make us wealthy. All we know is the “past,” but in reality, even the past is often not fully understood. That is, we must admit we lack complete knowledge about the past, present, or future. In this state, we must conduct business and invest. The attitude toward business and investing is to focus on judging the “trend” by applying the concepts of differential and integral calculus simultaneously. Differential weather (e.g., morning and afternoon of a day) is easy to predict, but long-term future weather cannot be forecasted even by supercomputers. However, by accumulating knowledge of the past and analyzing it integrally, it is possible to predict the trend of the distant future to...