External World Skepticism
‘’Locke and Descartes have very different ideas about how to defeat external world skepticism.’’ Whose views are more valid about the realiability of sense perception for understanding the external world?
The knowledge, the idea of the existence of external world and the way it is perceived by human being has been controvesy issue for centruies. Descartes and Locke also two very important name who proposed some viewpoint, even it can be said some theories, on the issue. The existence of external world and external bodies are true without us? Or do they exist as long as we perceive them? The idea of existence of external bodies, the knowledge of them can be attained through the way they reach us in any form. The most common and the easiest, as it will be discussed later as the only, way is the senses through them we perceive the material objects and arrive at the information they exist or not. Every existential material being has some spesific physical qualities that appeal to our senses, and through this way we experience them. It is an obvious fact that something that does not exist can do nothing to us or can show no quality to be noticed by us. Famous philospher Descartes also, basically based on this perspective, put forward that what we are perceiving through our senses are the external bodies that caused the ideas in us. As the ideas of external bodies caused in us by their perception through our senses, they exists outside independent of us. This means that whether or not we perceive any material being, it keeps to process of existence. Only, the idea of it, in us, begins with our noticing, perceiving and putting in a place in our mind. To be more clear, the part of it, its existence to us is this: our getting the idea of it. And getting an idea of an objects is provided through experiencing it by our senses independent of our will and desire. When we notice an object it has been realized that it reached us with one or more physical qualifications of it; thus we perceived it through our sense organs and have an idea about its existence. So, tt the very moment we perceive an object, its existence accepted by us in my opinion. However, Descartes claims that sensory ideas must be produced by some substances other than us as we have a passive faculty of sensory perception and only active faculties can use them. It is worth to noting that it is totally wrong as it is possible our having an idea that produced without us. The ideas are produced, no matter what they are about, in our mind. And, ideas of external things comes into being in our minds just because we can notice them in a way. After their idea, their knowledge is reached with the way their qualities are perceived by senses. On the other hand, Locke makes his theory depend on a more assured ground. The Knowledge of the Existence of any other thing we can have only by Sensations. The only way to know any external thing is to experience it through our sensory organs. Because their realization in our minds or their existence in us is created by the testimony of our sensory organs. It can be said that our understanding of the external things pass through our reliability on our sensations. However, it also is worth to note that whenever we perceive something through our sensory organs, a certain quality of them affects us in a specific way. After their perception realizes in our mind, we makes reasons about them and understand that there are material objects that exists outside, independently. So mean, there are external material things that exists without and independent of us. Furthermore, the knowledge of them can be gained only through sensations and perceptions. First of all, when we face with an object, we perceive it through our sense organs. This perception is moved on to our brain, and with its interpretation of the object, an idea of it takes place in us. For instance, my perception of a book, my knowing of a book is...
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