Cartesian Thought vs Pragmatism

One of Descartes' arguments is that one cannot start learning without wiping their mind clean from their previous knowledge and all knowledge is open to doubt. These are two of the several reasons why pragmatists such as Dewey and Pierce are against Cartesian thought. One of Dewey's reasons is his argument, inspired by Darwinian thought, that our experiences shape our knowledge. For Pierce, knowledge is something that makes us happier, more comfortable. While he does not completely reject doubt, he is against the idea that everything needs to be doubted because too much doubt would only push the individual to an uncomfortable state of mind and unhappiness.