The Cartesian Circle

The Cartesian Circle is the central argument of Descartes’s epistemology. In Descartes’s epistemology, the relationship between clear and distinct perception of God’s existence and God’s veracity to the truth of clear and distinct perceptions involve a dilemma.It seems that his reasoning is circular. This paper attempt to show that there are certain fundamental factors in Descartes’s philosophy which clarify the rationale both of his actual metaphysical procedure and of his discussions of it, and remove the circularity and contradiction which have been found in them. This paper tries to point out that it is capable for human being to grasp truth before perceiving the God’s existence. We can find out that answer in the moment Descartes against the "evil genius doubt".