For Discardings the reason also called common-sense is innate of course equal in all the men, thus being a rational animal with equalities, of right with common-sense or reason in which all we possess in them, however, nor all the men use correctly of its reason. As Discardings common-sense or the reason is what it exists of more distributed in the world, why each one is judged so well endowed with it that exactly those that are more difficult of if contenting with any another thing not they costumam to desire to possess it more than what already it has, thus, the diversity of opinions does not come from the fact of some to be more rational of what others, but of the fact to lead our thoughts for diverse ways and not to only consider the same things. 2.3 The METHOD the good method is that one that allows in them to know the biggest number possible of things, and the lesser number of rules. The procedure of the research is the analysis: dividing each one of the difficulties, that is, to reduce a more complex problem in simpler. All the method consists of an order and the disposal of the things toward which we must come back the look of the spirit to discover some truth.
For Discardings the method is always mathematician: complete knowledge and entirely dominated by the reason. Four basic rules exist: Evidence: To never admit thing some as true if not to recognize evidently as such. Analysis: To divide the difficulties in parcels. Synthesis: To more command the thoughts for objects simplest and fcies for the most complex ones. Dsemembramento: To make possible enumerations most accurate. 2,4 METHODICAL DOUBTS Distinct doubt skeptic who suspends and any judgment all, not believing possibilities to reach the certainty, the methodical doubt have for objective to establish the certainty in inquebrantvel way, rejecting everything what it is not certain of an absolute certainty. From it doubts universal Discardings drift the knowledge of God, the knowledge who we have of we ourselves and the knowledge of that it exists.
FINAL CONSIDERAES This work are of utmost importance, therefore, from which we acquire knowledge deepened on the rationalism, in which it is part not only of the philosophy as of the history of the humanity. Having as the knowledge the beginning of the reason, of the doubt in which until today we live deeply, therefore, of certain it forms the rationalism is part of our lives through the common sense. REFERENCES ZAHAR, Jorge: Course of Philosophy. 12 Ed. Rio De Janeiro 2004. GARCI’A MORENTE, Manuel.Fundamentos of Philosophy I Lies and Preliminares. 8 Ed. So Paulo: Master Jou 1930.