Reform and opening-up is the fundamental driving force for economic and social development in the new era, while people's interests and creativity are the ultimate driving force for reform and development. Under the guidance of Marxist philosophy and scientific socialism, China's reform, opening up and system innovation have greatly liberated and rapidly developed social productive forces, which is the fundamental reason for China's amazing achievements. More than 40 years of reform and opening-up experience has repeatedly proved that the most important and reliable way to realize the expected goals of reform and opening-up is to determine the goals of reform and opening-up according to the expectations of the people and the historical development trend, to improve and develop the socialist system with Chinese characteristics through reform and opening-up, so as to improve and develop the socialist system with Chinese characteristics, to promote the positive interaction between the top-level design of reform and opening-up and grassroots practice, and to promote the sustained, in-depth and orderly development of reform and opening-up.