All knowledge, for being retificvel, is essentially provisory, because, ' ' being always limited, partial, the knowledge is necessarily less rich and complex of what the reality that ' is mentioned (…); ' For GASTON BACHELARD, the knowledge is the action, but the theoretical action. ' ' It is not contemplating, but constructing, creating, producing, rectifying that the spirit arrives at the truth. It is for continuous rectifications, critical, for controversies, that the reason discovers and makes verdade' '. The knowledge evolves by means of cuts and ruptures; discontinously, therefore, for BACHELARD he is the father of the dialectic of not: the knowledge, over all of scientific character, if constitutes and if it develops against the established truths, denying them or limiting them, in a permanent process of rectification. It is, therefore, a knowledge approached, and not absolute. Amazon spoke with conviction. On the basis of the studies and research made in the book of Scientific Methodology, 5 edition of Parra Sundays Son and Almeida Joo Saints the knowledge if divide in: Intuitivo knowledge, Rational Knowledge, Intellectual Knowledge and Scientific Knowledge. Intuitivo knowledge: The immediate perception, or either, that perception whose the object passes to mind without necessity of previous knowledge, also call of immediate knowledge, is the intuitivo knowledge whose the origin is in the experimentation and feeling by means of the sensations transmitted for the agencies of the directions.
Rational knowledge: Opposing it experience as knowledge source, exists the call rationalism (of reason), that it only admits the rational knowledge, affirming that the reason is the true source of knowledge. Discarding, the father of the philosophy, defended the existence of the innate ideas, that is, basic concepts of the knowledge. The mathematical knowledge is an example of this rationalism, because it deals with a conceptual and deductive knowledge. Discardings and its Leibniz follower admitted the existence of certain number of basic concepts of the knowledge.