Descartes's View On Rationalism

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“Rationalism is the belief that at least some knowledge about reality can be acquired through reason, independently of sense experience.”. Rationalism was a philosophical movement that appeared around 500 BC and is often described as one of the most important theories of philosophy. It consist of three main basic claims: The Intuition/Deduction Thesis, The Innate Knowledge Thesis and the The Innate Concept Thesis. For a philosopher to claim himself as a rationalist, he has to apply at least one of these three thesis.
Rationalist were constantly questioning what was real.. Are we really alive right now ? Is this real life ? What is real ? Is the sky really blue ?
Descartes believed that “I think, therefore I am” so “I am, I exist” is necessarily true, at least that is how Descartes thought. However, many
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Differently from Plato, he believed that only eternal truths, such as math, could be attained by reason alone, without any need of sensory experience. However, he did believe that other knowledge does require experience. Descartes doubted everything, he couldn’t tell if life was real, however, according to him, the only thing that will always remain real is that there is a consciousness that is doubting and believing, thus, “I think, therefore I am.”
Descartes had came out with a book, “Rules for the Direction of the Mind” which presents a very long list of rules, if followed, these rules will give you access to all possible knowledge.
This method consisted in two steps: intuition and deduction.
Intuition is defined as “the faculty by which truths are grasped immediately, without the intervention of sense experience or other ideas.” Intuition is often described as an instinct, a gut feeling, the intuitionist claim to not only know directly the logical truths, as “4 is 4” but also truths about reality such as “Pain Will Always Be With

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