Personal opinion: This is an aphorism about business. Comparing before and after, I used to work very diligently, but I had no business strategy and was not "crooked" enough. Business was always bleak. In layman's terms, I couldn't make any money. When spring comes, the fortunes are bad, and the harvest of the year can be imagined; later on, I have more experience, and I have more business strategies. Everything goes smoothly, I am very proud in all aspects, and my pockets are bulging. The last aphorism : At this time, it is even more important to keep oneself in peace, not to do bad things, and not to be greedy!