| The primary question of theory of information is: what is information and material and what relationship between information and material? Making clear the essence of information has great influence for dialectic materialism. Only if we have understood the essence of information, can we know the material world we live in.The material discussed by this article is material in philosophy. The material in marxism philosophy is philosophy category including movement, time and space and so on. Information is the primary property of material. From the angle of the method of information's existence information constructs itself's evaluation through symbol, display, show material and material's feature, information is secondhand existence form of the matter which it displays. From the perspective of information movement, the combination of information of movement and the movement of material and energy constructs and forms of material in the whole time and space. Knowledge is a material course which takeis the form of information cource.Relationship can exist only in difference of matters which result to general relationship and bring up the mechanism by which man can master information. This means, information can be understood by us only in special relationship of difference. |