1, "Without investigation, there is no right to speak" is a famous assertion put forward by Mao Zedong in his masterpiece against bookishness. This assertion later became the slogan of China producers to proceed from reality, go deep into the masses and integrate theory with practice. Looking back on the development of our party, we can clearly see that the whole party attaches importance to, persists in and strengthens investigation and research, and the party's work decisions and policies are in line with objective reality, and the party's cause will develop smoothly; Ignoring investigation and study or insufficient investigation and study often leads to subjective understanding divorced from objective reality, and the will of leadership divorced from the will of the masses, which leads to decision-making mistakes and losses to the cause of the party.

2. Anti-bookishness expounds the extreme importance, purpose and method of investigation and research from seven aspects. In the article, Mao Zedong put forward from the beginning that "there is no right to speak without investigation" and clearly pointed out that "if you don't investigate a certain issue, you will stop speaking on a certain issue". He stressed that social surveys should be conducted among the masses, pointing out that all conclusions were drawn at the end of the survey, not at the beginning of the survey.