毛泽东关于社会发展的动力观是十分明确的 ,即在社会主义条件下 ,人们对物质利益的追求及其满足是社会发展的原动力。但他并没有一以贯之地坚持下去 ,并且夸大精神力量的作用 ,犯了严重的错误。邓小平同志发展了毛泽东的思想 ,强调了物质文明和精神文明要两手抓两手都要硬的原则 ,坚持改革开放、坚持四项基本原则。在科学技术和教育思想上超越了毛泽东本人的局限 ,极大地推动了社会主义的建设步伐 ,取得了巨大成就 Mao Zedong’s motive conception of social development is quite clear. Under the conditions of socialism, people’s pursuit of material interests and their satisfaction are the driving forces of social development. However, he did not consistently adhere to it and exaggerated the role of spiritual power and made grave mistakes. Comrade Deng Xiaoping developed Mao Zedong’s thinking and emphasized the principle that material civilization and spiritual civilization should be hardened both hands and shoulders both hands and that they must adhere to the four basic principles of reform and opening up. Surpassing the limitations of Mao Tse-tung himself in science, technology and education, greatly boosting the pace of socialist construction and making tremendous achievements