The important content of strategic subject's self-cultivation. Diligence is the studious spirit of studying hard and the pragmatic style of tenacious struggle. Diligence is a prerequisite for success and a feature of genius. The main methods to cultivate diligent character are as follows: 1. Have a strong sense of time. Time is life, and human life is limited. If you want to make greater contributions to mankind in a limited time, you must cherish time and work and study actively. To cherish and plan time, we must first have a strict time plan, arrange the time to complete each task, and strive to finish it on time. Secondly, we should be good at using the best energy and time. Make full use of the best time of your day and concentrate on important things. In addition, we should cultivate the style of not pushing or dragging, and finish what we do on the same day. The second is to have tenacious perseverance and hard work. First of all, no matter what occupation you are engaged in, you should be willing to endure hardships and not covet ease and comfort; Secondly, don't be afraid of difficulties; Be a soldier who is not afraid of difficulties and obstacles; Thirdly, we should have tenacious perseverance, not be afraid of setbacks or even failures, not be a coward who quits despite difficulties, not be discouraged, persevere and never give up until we reach our goals, and cultivate the character of hard work. The third is to fight laziness. Laziness is the root of nothingness, as opposed to diligence. We should overcome the lazy style, cheer up our spirits, study hard and study hard, and aspire to become experts and experts in this industry, and make contributions to economic development and social progress.