In Manuscript of Economics and Philosophy in 1844(hereinafter referred to as the"Manuscript"),Marx system-atically and clearly expounded his thoughts on communism for the first time,which signals the birth of his ideas of historical materialism and has important theoretical and practical value.The"Manuscript"made systematical and rational criticisms about the various communist schools,views or trends of thought at that time,laying the foundation for the beginning of Marx's early thoughts on communism.Marx put forward that communism is the realization of the human nature,the harmonization of hu...