Skepticism to refute skepticism

Explain (1) the process by which Descartes uses skepticism to refute skepticism, and (2) what first principle does this lead him to? (3) Explain why this project was important for Descartes to accomplish.

Sample Solution Skepticism to refute skepticism Descartes’s ideas were considered revolutionary and radical. He was one of the firsts to question the existence of the world through his skeptical doubt. He tries to understand the nature and essence of the human knowledge through skepticism. Though, he reexamined his system of beliefs by investing the ones that has doubtful foundations in his meditations. He tried to refute that skepticism in order to achieve his goal but was not successful all the time [Grene, M. p.558]. Descartes resolved to systematically doubt that any of his beliefs were true, in order to build, from the ground up, a belief system consisting of only certainly true beliefs. His end goal, or at least a major one, was to find an undoubtable basis for the sciences. His tactic was to show that, despite the best skeptical arguments, there is at least one intuitive truth that is beyond all doubt and from which the rest of human knowledge can be deduced.