"Great Changes in the New Era in the Decade", "A Series of Transformational Practices", "Historical Changes", "Extensive and Profound Economic and Social Systematic Changes"... "Change" is a remarkable keyword in the report of the 20th National Congress of the Communist Party of China. It is a great achievement, and also the password of success. It is precisely in the process of continuous change that the CPC leads the people to cope with complex and changing situations and challenges, never becoming rigid or stagnant, and advances the modernization of Marxism in China with the wisdom of change, the way to respond, and the courage to change, and constantly moves from victory to new victory. The Way to Change: "Only by following the historical trend, responding positively and seeking change, can we keep pace with the times." On November 15, the 17th G20 Summit was held in Bali, Indonesia. Throughout the world, change is the trend of the times, the aspiration of the people, and the vast historical trend. "Running water does not corrupt, household hinges do not bark", "every day is new, every day is new, and every day is new", "every day is new, and every day is new"... Chinese wisdom about change is deeply rooted in the fertile soil of Chinese culture. Looking back over the past century, we should break through the ideological shackles of regarding Marxism as an unchanging dogma and go out of the new revolutionary road of encircling cities from the countryside; Keep up with the pace of the times and carry out the great initiative of reform and opening up; Adhering to the "two combinations" and creating a new era of socialism with Chinese characteristics... The courage to change is the distinctive character of the CPC. Understand the historical trend and stand at the forefront of the times. People of the CPC in the new era lead and promote change with a stronger historical consciousness and initiative - interpret "the biggest politics" with popular support, and adhere to the people centered development thought; Remove institutional and institutional barriers to comprehensively deepen reform, improve and develop institutions and governance systems; Adhere to the common values of all mankind, promote the construction of a community with a shared future for mankind, and lead the trend of progress of the times... The greater the cause, the more difficult it is, the more it needs hard work, and the more it needs reform and innovation. The key to change: "The historical conditions at that time should be taken as the transfer at any time and anywhere." The wise people change with time, and the wise people change with events. "The historical conditions at that time should be taken as the transfer at any time and anywhere." The classic statement in the Communist Manifesto still shines with the light of truth. The key to change is to adhere to the problem orientation.