"Three realities" is the "real content" of leading cadres' work style construction, which makes the work style construction more intuitive and beneficial to the people. Seeking truth from facts, starting a business by officers, being honest and upright fully embodies the working purpose of serving the people wholeheartedly by party cadres. Think about problems, make decisions, do things, and do work in a down-to-earth manner. Everything should proceed from reality. Don't engage in image projects, performance projects and face projects. We can't resort to deceit, deceive the superior and deceive the inferior, and pursue GDP unilaterally. We should put people's interests first, long-term development first and solving problems first. If the work is done in a down-to-earth manner and benefits the people, the people will see it in their eyes and remember it in their hearts. If the work is mixed with water and infringes on the interests of the people, the people will also see it in their eyes and remember it in their hearts. But the former can stand the test of history and be praised by the people. The latter can't stand the slightest test and has been spurned by history and people.