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Descartes argued that since he was able to doubt his own existence (hence "I think, therefore I am"), there must be a thinking thing (mind) that exists. This thinking thing implies the existence of a perfect being (God) who would not deceive him. Therefore, everything perceived by the mind, including the external world, must exist.

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According to Descartes what you know best is?

According to Descartes, what you know best is your own existence. This is encapsulated in his famous phrase "Cogito, ergo sum" or "I think, therefore I am." Descartes argues that even if he were to doubt everything else, the fact that he is capable of doubting proves his existence as a thinking being.


Who said that everything else was doubtful until proved by reason?

René Descartes is often associated with the quote "dubito, ergo cogito, ergo sum," which translates to "I doubt, therefore I think, therefore I am." This reflects his belief that one can only trust in their own existence based on the process of reason and doubt.


Does Descartes show we aren't dreaming?

Descartes' philosophy on reality actually shows that we cannot for sure know that we aren' dreaming. In fact, Descartes believed that we are not sure of anything, except for the fact that we exist because we use logic and reason. Sorry that this doesn't answer your question, but the point of this ideology is for others to try to show Descartes how we know FOR CERTAIN that we are not dreaming right now....harder to do than one would think.


What Descartes concept of systematic doubt led to the famous saying Cogito ergo sum which means?

Descartes' systematic doubt was a method of questioning all beliefs to find the foundational truth. This process led him to his famous saying, "Cogito ergo sum," which translates to "I think, therefore I am." It highlights the certainty of one's existence as a thinking being, even in the face of doubt about everything else.


Was René Descartes ever married?

René Descartes had a relationship with a servant girl named Helène Jans. They had a daughter but never got married and he never married anyone else.

Related Questions

Why did Ren Descartes embark on the project of doubt?

Short answer: Descartes' doubt was like WWI - the doubt to end all doubt. Only by doubting everything could Descartes hope to find anything that was certain (even if the only certainty is that nothing else is certain!).


According to Descartes what you know best is?

According to Descartes, what you know best is your own existence. This is encapsulated in his famous phrase "Cogito, ergo sum" or "I think, therefore I am." Descartes argues that even if he were to doubt everything else, the fact that he is capable of doubting proves his existence as a thinking being.


How do you exsist?

we exist by god he created earth and people and everything else in ever existed or ever will exsist.


How does scientist prove half ape-half man?

They can't prove anything about Charles Darwin's evolution. Here's the thing they cant prove, along with everything else, humans being able to reason. Apes can't do that, they do everything by instinct.


Can an axiom be proved?

No, axioms are the starting rules that you use to prove everything else, ie they are assumed truths.


What human values are most important to Rene Descartes?

Rene Descartes valued rationality and human logic. Descartes is famous for his sentence, "I think, therefore I am." It was the mind that Descartes valued more than anything else.


Who else worked with Rene Descartes?

Claude Mydorge, and Father Marin Mersenne


Who said that everything else was doubtful until proved by reason?

René Descartes is often associated with the quote "dubito, ergo cogito, ergo sum," which translates to "I doubt, therefore I think, therefore I am." This reflects his belief that one can only trust in their own existence based on the process of reason and doubt.


How can you prove that your house is wired in parallel?

Unscrew any lamp or disconnect any appliance. If the house is connected in series, everything else in the house will stop working!


What were Rene Descartes main contributions to mathematics?

he allowed math to go further than anyone else did


Does anyone else feel life isn't real that it's a dream or something?

Descartes did. Look him up.


When was The Invention of Everything Else created?

The Invention of Everything Else was created in 2008.