Knowledge. The knowledge is unquestionably a fact. In any society it is a constant. The history of the knowledge is a permanent process of rectification and overcoming of concepts, explanations, theories, techniques and ways to think, to act and to make. The characteristics of the knowledge, its roots and its process of elaboration and improvement are studied under well different perspectives, for the diverse thinkers who if have busy of this subject. For the idealist, the knowledge is born and depletes in the citizen, as pure idea. Criticizing radicalism of the idealistic positions, LEFERBVRE observes that ' ' many Metaphysical ration in the following way: ' ' The citizen of the knowledge, the human being, is a conscientious individual, one I; who is one I? It is a conscientious of itself e, therefore, closed being in itself exactly, In it, cannot have seno subjective states, states of conscience. How it could leave itself exactly, to carry itself to it are of itself in order to know a diverse thing of itself? The object, in case that exists, it is it are of the reach.

The pretense knowledge of objects, proper the existences of these, is not more than an illusion (…). The knowledge is defined as apprehension of an object for the citizen, that is, the cognoscitivo citizen, the conscience, has as function apprehension of the object. This apprehension is become fullfilled by means of a process where the citizen leaves its sphere to catch the properties of the object, being that these properties appear as image in the citizen. It is important to emphasize that a citizen alone is subject for an object and an object alone is object for a citizen, therefore these remain separate. The knowledge object tends to identify itself with real object, without never atingiz it, however, in its fullness. The objetividade is an infinite process of approach, as occurs in the assinttico parallelism of LOBATSCHEWSKY (1793-1856).