First, the law of unity of opposites is the fundamental law of the development of anything. In the primary stage of socialist society in China, there are two pairs of social contradictions. One is the basic social contradiction, that is, the contradiction between productivity and production relations, economic base and superstructure; The second is the main social contradiction, that is, the contradiction between the people's growing material and cultural needs and backward social production. Resolving these contradictions will promote the sound development of economy and society; If it is not solved well, it will greatly affect economic and social development. To build socialism, we must strive to overcome the part of production relations and the part of superstructure that does not adapt to the development of productive forces, vigorously develop productive forces, continuously accelerate the pace of economic and social development, and meet the material and cultural needs of the broad masses of the people to the greatest extent. Second, per capita GDP has entered a period of $65,438+0,000-3,000. On the one hand, the productivity and people's material and cultural living standards have generally been greatly improved, which is naturally conducive to stimulating people's enthusiasm for production and economic and social development, so it is the golden period of socialist cause. On the other hand, due to historical reasons and differences in reality, ownership forms and distribution methods, the economic and cultural development of all ethnic groups in various regions is relatively unbalanced, and the income levels of people in various economic entities are gradually widening, even causing local inequality between the rich and the poor. This will inevitably affect some people's enthusiasm for production and become a prominent period of various social contradictions, thus adversely affecting productivity and social and economic development. 3. In view of the fact that China's economic and social development has entered the period of per capita GDP of 1000 to 3,000 dollars, we should pay close attention to all possible situations in economic and social development under the guidance of the basic principles of Marxist social contradictions and principal contradictions, change the concept of development, adhere to the people-oriented principle, constantly innovate the development model, adjust economic and social policies on the basis of developing production, give consideration to social fairness and justice, narrow the gap between the rich and the poor, and pay attention to social weakness. Continuously improve the quality of development and push China's economy and society into the track of comprehensive, coordinated and sustainable development.