Preliminary Interpretation of Descartes Meditations

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Preliminary Interpretation of Descartes Meditations

René Descartes was a revolutionary figure in the 17th century during the renaissance period, at a time when the way people viewed the world was changing dramatically. In the past people had described things using a mixture of colour, hot, cold, sweet tasting, hard (secondary qualities) and distance, velocity, time, mass and acceleration (primary qualities). But in a time of dramatic change, mathematical science was, through mathmaticalised theories and predictions of measurable quantities proving primary qualities to be more reliable and efficient than secondary qualities. A now scientific, world seen predominantly by primary qualities left no place for secondary qualities. Descartes was in the forefront of renaissance maths, natural philosophy (physics) and wrote many books on geometry and astronomy among many other subjects. However in his book ‘Meditations and Other Metaphysical Writings’ he attempts to maintain his place as a mathematical scientist yet find a place for the secondary qualities, afraid that science will sweep them away. The place he finds for these secondary qualities is as part of the thinking substance.  

 

Descartes begins the first meditation of ‘Meditations and Other Metaphysical Writings’ by introducing reasons why we can doubt everything which we have come to believe, even those things which we seem most sure are correct.  

     “Some years ago I noticed how many false things I had accepted as true in my childhood, and how doubtful were the things that I subsequently build on them”

As children we learn and accept many things without really looking deeper or challenging them; as we grow older we subsequently add more knowledge on top of this unchallenged knowledge, believing its foundations to be correct since we have always believed them and have never had reason to challenge them. Therefore Descartes suspects that he has acquired many incorrect beliefs. A building with rotten foundations, for example, might look structurally sound; nevertheless it has no stability and will eventually collapse. In this way Descartes believes that his beliefs are built on poor foundations and so he cannot be certain of any of them. This becomes the aim of the mediations, “Once in a lifetime, everything should be completely overturned and I should begin again from the most basic foundations if I ever wished to establish anything firm and durable” Descartes proposes to try and sort out his beliefs, getting rid of all those that are false, revealing what is left to be that which is the truth and which he can be certain of.

        However to sort each and every individual belief he has acquired over a life time, would be an enormous task, far to large to undertake, in the case of the building with rotten foundations the only way to make it safe would be to pull the building down and then rebuild it on secure foundations. Likewise with his beliefs Descartes decides this is the best way to find truth and certainty. “As soon as foundations are undermined everything built on them collapses of its own accord, and therefore I will challenge directly all the first principles on which everything I formerly believed rest”.

        To do this Descartes utilises a method by which he methodically eliminates all of the things he can possibly doubt in the slightest, thus whatever is left over must be the truth and must be certain, this method is known as the method of doubt. “But since reason already convinces us that we should withhold assent just as carefully from whatever is not completely certain and indubitable as from what is clearly false, if I find some reason for doubt in each of my beliefs that will be enough to reject all of them”    It should be pointed out that Descartes is not a sceptic, he is only using scepticism as a tool to discredit those beliefs which are false, so as to uncover truth and certainty. Descartes has 3 waves of doubt before he eventually gains a foothold into the truth and certainty he is looking for. This first wave of doubt is based on the senses. In his search for unshakable knowledge he starts by reminding himself that a large part of what he has accepted has been based on the senses, sight, sound, hearing, touch and taste and what they have revealed to him. However it is these same senses that have often led him to be mistaken, Descartes then goes on to say “it is prudent never to trust completely those who have deceived us even once” meaning if the senses have fooled us once then could it not be the case that they are always deceiving us?  Nonetheless Descartes brushes over this saying “But despite the fact that the senses occasionally deceive us about things that are very small or far away, perhaps there are many other things about which one surely cannot have doubts, even if they are derived from the sense” What Descartes is saying is that although the senses deceive us occasionally i.e. objects at a distance, this does not necessarily mean that they always do or that we should not trust them. There surely cannot be any doubt that he is sitting by the fire, wearing a dressing gown, holding a piece of paper in his hands. Descartes even suggests that to doubt this would be to doubt he has hands or that the body that is there is his, for this would be thinking like a mad person,

“The fact that I am here, sitting by the fire, wearing my dressing gown, holding this page in my hand and other things like that. Indeed, how could I deny these hands or that this body is mine, unless perhaps I think that I am like some of those mad people”

This concludes the first wave of doubt which serves mainly as a reflection of the senses and how they elude us and for this reason can be doubted.

        Descartes next reflects upon the fact that he has often dreamed whilst asleep and in his dreams has been convinced that he is awake and not asleep in his bed, until he awakes to find himself in bed and realises his mistake. But if this is so, how can he be sure that he is not asleep all of the time or be certain of when he is asleep and when he isn’t? “When I think about this more carefully, I see so clearly that I can never distinguish, by reliable signs, being awake from asleep, that I am confused and this feeling of confusion almost confirms me in believing that I am asleep” He then goes on to say, suppose we are just dreaming and that we do not have such hands or bodies, however the things which we see when we are asleep are recognizable images which serve as copies of the real images. Thus these real things must exist since it is impossible for a painter to produce anything that does not have even a small essence of something real which actually exists, no matter how hard he tries “it must be admitted that at least some other things are real, that they are even more simple and general and that it is from them, as if from true colours, that all those images of things in our thoughts, both true and false, are constructed” He continues by saying that subjects such as physics, astronomy, medicine that involve the examination of complex things, can be doubted since they are based on things which have to exist, however other disciplines that discuss only very simple and general things that do not necessarily have to exist in nature, contain at least some certainty in his mind.  The example he gives to clarify this point is “For whether or not I am awake or asleep 2 and 3 added together makes 5 and a quadrilateral figure has no more than 4 sides. It seems impossible that one could ever suspect that such clear thoughts are false” Although later on he will find a way to doubt even these general things. This 2nd wave of doubt surrounding general reality (is he awake or asleep etc), mathematical and logical principles (2+3=5, quadrilateral shapes having 4 sides) increases in his strength of argument compared to the 1st wave of doubt, however it doesn’t lead him to doubt everything that can be doubted.

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In the 3rd wave of doubt, having now doubted his senses, his sanity, general reality and logical mathematical principles, removes the last of all his beliefs, which he has not been able to remove through the 1st and 2nd waves. This is the most radical of the 3 waves of doubt, in this wave he questions whether God could have caused him to be mistaken in thinking that 2+3=5 or that a quadrilateral shape has 4 sides, doubting even the simple general things he earlier said would be impossible to find doubt with. However God is considered to be omnipotent (all powerful) and ...

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