In the Meditations, Descartes attempts to ground all knowledge on an individuals rational capacities.  Demonstrate how Descartes does this by addressing each of the following in your paper:
1.    Explain how Descartess dream argument and evil deceiver argument challenges an individuals ability to know.   
2.    Explain how Descartes uses these doubt arguments to establish the necessity of the thinking I.
3.    Explain how Gods reality and idea helps Descartes to support belief in the outside world.  Do you believe that Descartes use of God leads to the problem of evil?  Do you think this is a serious criticism?  Provide both sides on the issue and defend you conclusion as to which one you consider most convincing.