Idiom implication
Mencius believes that no matter what you do, you must first distinguish between primary and secondary, and make overall plans. This is actually the essence of time management. Idioms tell people to prioritize things, understand the urgent matters, and then determine the priorities.
More specifically, the things to be done are graded and classified, and the most important thing is done first, and then the secondary thing is done. Only by giving priority to the time of the most important thing can we give priority to the most important work and control the value of time from the overall situation.