It symbolizes the beginning of a new historical period, and the people of China are full of vitality. At that time, there was a popular saying, "Let's open our arms and do something big". The enthusiasm for doing great things comes out of generate like a volcano, and we are engaged in the torrent of socialist modernization like Qian Fan. These two sentences are another philosophy. Everyone is a part of socialist modernization. Only when everyone works hard can the great cause of the four modernizations be brilliant. After understanding this philosophy, it is not difficult to understand why the author "quickened his pace".