Concerning the replacement effect of website information flow to real human flow,the previous scholars have conducted a quantitative study,constructing replacement model between them which was confirmed partly.

The realistic human being is the theory base of environmental morals;

The author of this article suggests that the difference between Marxist historical pointview and the old philosophies is not the starting point of Marxist philosophy which is "real man", but that Karl Marx had stipulated "real man" scientifically, and found a .

Based on the analysis of the way of educational agents communication in cyberspace,different relationship between realistic agents and virtual agents are revealed;so are the character and the meaning.

Because he holds "the realistic man" firmly.

Marx creatively establishes the theory of"realistic man"when he criticizes Hegal s "self-conscious man"and Feuerbach s "abstract man".

According to Marx s social pattern theory,the history of real person s existence is concluded to three patterns: person in group pattern,person in independence pattern,person in freedom pattern.