Salesmanship is essentially the application of common sense, but these proven concepts only yield results when applied to "active individuals."
Our lives are filled with chance, uncertainty, entanglement, and choice. We may feel regret, or look back and find our past self naively amusing. Yet, having made the effort, it is good enough. Life is perhaps composed of countless accidents, complexities, and imperfections.
In chess, if the King or General is lost, the game is lost no matter how many other pieces remain. Similarly in life, without good health, no amount of other possessions can guarantee happiness.
The true essence of love is not about dramatic passion, but about the tranquility of daily life and mundane routines.
Do not rush to draw conclusions when facing problems. Even if you have an answer, wait a moment; there might be a better solution. Different perspectives often yield different answers. Learn to think from another's perspective, especially when encountering troubles. It is vital to wait, observe, and watch how things develop. Often, not only are problems resolved, but unexpected good fortune may also arrive.