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The Strengths And Weaknesses Of Descartes ' Dreaming Argument And Evil Demon Argument

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This essay will attempt to discuss the strengths and weaknesses of Descartes’ dreaming argument and evil demon argument. Through discussion, I will show why the evil demon argument is more plausible than the dreaming argument. The essay will give a brief definition of the two arguments and explain why these arguments are important. Then I will discuss the two arguments, considering both sides and referencing previous work by other philosophers. I will conclude with a short summary of the topics covered.

For the purposes of this essay it is important to establish what is meant by a valid and a sound in relation to arguments. The Internet Encyclopedia of Philosophy defines valid and sound in respects of philosophical argument. A argument is …show more content…

Descartes is considering that all of his experiences could be false and that everything is just the invention of a powerful being. This resulted in this argument:

(1) If I am to be certain of anything, I must be certain there is no evil demon.
(2) I cannot be certain there is no evil demon.
(3) I cannot be certain of anything.

This is Descartes’ Evil Demon argument. These two arguments are important as they bring up many queries about how we live our lives, and if we can really be certain of anything around us at all.

Descartes’ Dreaming Argument comes from his thinking that there is no way of knowing if you are sleeping or if you are awake. To know something is to have no doubt of a fact, it must be a justified true belief. To be justified it must hold logical reason, you cannot state something is true without evidence. In order for it to be true it is not enough to justify it, but it must be justified with true facts. Finally, you must believe it, in order to know something it must be true in your mind. As a result Descartes doubts his consciousness as he cannot truly know that he is awake. This spurs Descartes to question if any perceived knowledge of reality is really true. Descartes calls his senses into questions as he notes, “it is prudent never to trust completely those who have deceived us even once” and therefore concludes that as a result it is prudent, never to trust his sense. In

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