PHL100Y1 Lecture : Descartes 3.docx
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Criteria he can apply to take off from the one thing he knows that is that he can exist. Know the one thing he knows is that he has a clear indistinct perception. And that he thinks is just the thing he needs to come along. So i seem now to be able to lay it down as a general rule that whatever i perceive very clearly and distinctly is true . He validates this at the end of the 4th meditation. You perceive it very clearly and distinctly and then you can use the clarity and distinctness rule. (cdr). There might be a slight reason for doubt. The only reason for the mediators later judgments were open to doubt is because some god could have given me a nature such that i deceive even in matters which seem most evident . Maybe god has been an evil joker.