Archimedes said that if he had one firm and immovable point he could lift the world ·with a long enough lever·; so I too can hope for great things if I manage to find just one little thing that is solid and certain.
…you cannot be incorrect that you seem to sense something… is really what Descartes means when he says that we can doubt, but that we cannot doubt that we are doubting (or think or feel, but not doubt that we are thinking or feeling). — Janus
Pain and other sensations such as pleasure are unique in this context. If I feel pain or pleasure, it makes no sense to say that I doubt that I am feeling pain or pleasure; what could it even mean to say I doubt that I am feeling some sensation that I am feeling? — Janus
I am not really saying that our sensations are certain; since they are not propositional, they are neither certain nor uncertain, they are merely sensations, although what we infer on the basis of them can be certain or uncertain. — Janus
In the Second Replies, he adds:
"First of all, as soon as we think that we correctly perceive something, we are spontaneously convinced that it is true. Now if this conviction is so firm that it is impossible for us ever to have any reason for doubting what we are convinced of, then there are no further questions for us to ask: we have everything that we could reasonably want. … For the supposition which we are making here is of a conviction so firm that it is quite incapable of being destroyed; and such a conviction is clearly the same as the most perfect certainty. (AT 7:144f, CSM 2:103)
These passages (and others) suggest an account wherein doubt is the contrast of certainty.As my certainty increases, my doubt decreases; conversely, as my doubt increases, my certainty decreases. The requirement that knowledge is to be based in complete, or perfect certainty, thus amounts to requiring a complete inability to doubt one’s convictions – an utter indubitability. This conception of the relationship between certainty and doubt helps underwrite Descartes’ methodical emphasis on doubt, the so-called ‘method of doubt’ (discussed in Section 2). — SEP on Descartes' Epistemology
Perhaps what I now think about the wax indicates what its nature was all along. If that is right, then the wax was not the sweetness of the honey, the scent of the flowers, the whiteness, the shape, or the sound, but was rather a body that recently presented itself to me in those ways but now appears differently. But what exactly is this thing that I am now imagining? Well, if we take away whatever doesn’t belong to the wax (that is, everything that the wax could be without), what is left is merely something extended, flexible and changeable. What do ‘flexible’ and ‘changeable’ mean here? I can imaginatively picture this piece of wax changing from round to square, from square to triangular, and so on. But that isn’t what changeability is. In knowing that the wax is changeable I understand that it can go through endlessly many changes of that kind, far more than I can depict in my imagination; so it isn’t my imagination that gives me my grasp of the wax as flexible and changeable. Also, what does ‘extended’ mean? Is the wax’s extension also unknown? It increases if the wax melts, and increases again if it boils; the wax can be extended in many more ways (that is, with many more shapes) than I will ever bring before my imagination. I am forced to conclude that the nature of this piece of wax isn’t revealed by my imagination, but is perceived by the mind alone. (I am speaking of this particular piece of wax; the point is even clearer with regard to wax in general.) This wax that is perceived by the mind alone is, of course, the same wax that I see, touch, and picture in my imagination – in short the same wax I thought it to be from the start. But although my perception of it seemed to be a case of vision and touch and imagination, it isn’t so and it never was. Rather, it is purely a perception by the mind alone – formerly an imperfect and confused one, but now clear and distinct because I am now concentrating carefully on what the wax consists in. — Descartes, Second Meditation
See! With no effort I have reached the place where I wanted to be! I now know that even bodies are perceived not by the senses or by imagination but by the intellect alone, not through their being touched or seen but through their being understood; and this helps me to understand that I can perceive my own mind more easily and clearly than I can anything else. Since the grip of old opinions is hard to shake off, however, I want to pause and meditate for a while on this new knowledge of mine, fixing it more deeply in my memory. — Descartes, Second Meditation
The ego is an idea. Right? — frank
We should pay attention to the specific condition of the utterance:it is the very act of producing an utter, not the text of the uttered....
This act is the work of the speaker who set langue into motion. The relation between the speaker and the langue determines the linguistic character of the utterance. (Benveniste 2, pl 80)
The sphere of the utterance thus includes that which in every speech act, refers exclusively to its taking place, to its instance, independently and prior to what is said meant in it. Pronouns and the other indicators of the utterance, before they designate real objects, indicate precisely that language takes place. In this way, still prior to the world of meaning, they permit the reference to the very event of language, the only context in which something can only be signified. — Giorgio Agamben, Language and Death, The Place of Negativity, pg 17
For a life-span can be divided into countless parts, each completely independent of the others, so that from my existing at one time it doesn’t follow that I exist at later times, unless some cause keeps me in existence – one might say that it creates me afresh at each moment.
If I gave any thought to what this soul was like, I imagined it to be something thin and filmy– like a wind or fire or ether – permeating my more solid parts.
I am not that structure of limbs and organs that is called a human body; nor am I a thin vapour that permeates the limbs – a wind, fire, air, breath, or whatever I imagine ...
... for I have supposed all these things to be nothing because I have supposed all bodies to be nothing.
That makes imagination suspect, for while I know for sure that I exist, I know that everything relating to the nature of body – including imagination – could be mere dreams; so it would be silly for me to say ‘I will use my imagination to get a clearer understanding of what I am’ ...
Well, then, what am I? A thing that thinks. What is that? A thing that doubts, understands, affirms, denies, wants, refuses, and also imagines and senses.
But the ‘I’ who imagines is also this same ‘I’. For even if (as I am pretending) none of the things that I imagine really exist, I really do imagine them, and this is part of my thinking.
I certainly seem to see, to hear, and to be warmed. This cannot be false; what is called ‘sensing’ is strictly just this seeming, and when ‘sensing’ is understood in this restricted sense of the word it too is simply thinking.
The sphere of the utterance thus includes that which in every speech act, refers exclusively to its taking place, to its instance, independently and prior to what is said meant in it. — Giorgio Agamben, Language and Death, The Place of Negativity, pg 17
Pronouns and the other indicators of the utterance, before they designate real objects, indicate precisely that language takes place. In this way, still prior to the world of meaning, they permit the reference to the very event of language, the only context in which something can only be signified. — Giorgio Agamben, Language and Death, The Place of Negativity, pg 17
On the positive side he is certain that he exists, certain that he thinks, and imagines, and senses. On the negative side, just as what he imagines and senses can be called into doubt, so too can what he thinks, for they are all part of his thinking. If what he thinks can be doubted, if even what he doubts can be doubted, is he then hopelessly lost is doubt? Will his certainty that he exists be sufficient to serve as his Archimedean point? — Fooloso4
That he imagines cannot be doubted, but what he imagines can be. He says that imagination is related to the nature of body, but also that to imagine is to think. — Fooloso4
I cannot keep myself from believing that corporeal things, images of which are formed by thought and which the senses themselves examine are much more distinctly known than that indescribable part of myself which cannot be pictured by the imagination. Yet it would truly be very strange to say that I know and comprehend more distinctly things whose existence seems doubtful to me, that are unknown to me, and which belong to me, than those of whose truth I am persuade, which are known to me, and which belong to my real nature--to say, in a word, that I know better than myself. But I see well what is the trouble: my mind is a vagabond who likes to wander and is not yet able to stay within the strict bounds of truth. — Second Meditation, pg 29, emphasis mine
Contrary to Aristotle, Descartes claims that we do not see things is (in?) the world, but rather representations in the mind. — Fooloso4
But he is afraid he will only exist for now, while he is thinking; as if he is not always thinking, that it is a particular act, separate from his internal dialogue or awareness — Antony Nickles
That continuity of thinking [that “thinking” is our internal dialogue and/or awareness] is clearly central to the meditation and a source of concern. I don't understand what you mean by saying it is "separate from his internal dialogue or awareness." I think Descartes is linking those activities together. — Paine
Descartes was not sharply separating the domain of Reason as Kant did from the nature of things as they are in themselves. — Paine
Rather, it is purely a perception by the mind alone – formerly an imperfect and confused one, but now clear and distinct because I am now concentrating carefully on what the wax consists in.
Something that I thought I saw with my eyes, therefore, was really grasped solely by my mind’s faculty of judgment.
Seeing the act of thinking as a list of activities does not reflect the problem of description that I commented upon upthread. By speaking of an 'indescribable part of myself which cannot be pictured by the imagination', it seems to me that Descartes is pointing at something that is always there but is not understood. — Paine
But I still can’t help thinking that bodies – of which I form mental images and which the senses investigate – are much more clearly known to me than is this puzzling ‘I’ that can’t be pictured in the imagination. It would be surprising if this were right, though; for it would be surprising if I had a clearer grasp of things that I realize are doubtful, unknown and foreign to me – ·namely, bodies – than I have of what is true and known – namely my own self. But I see what the trouble is: I keep drifting towards that error because my mind likes to wander freely, refusing to respect the boundaries that truth lays down.
I think it because the imagination will not give us a clear and distinct idea of the 'I'. But reason does. — Fooloso4
Mais néanmoins il me semble encore et je ne puis m’empêcher de croire que les choses
corporelles, dont les images se forment par la pensée, qui tombent sous les sens, et que les
sens mêmes examinent, ne soient beaucoup plus distinctement connues que cette je ne sais
quelle partie de moi-même qui ne tombe point sous l’imagination: quoi-qu’en effet cela
soit bien étrange de dire que je connoisse et comprenne plus distinctement des choses dont
l’existence me paroît douteuse, qui me sont inconnues et qui ne m’appartiennent point,
que celles de la vérité desquelles je suis persuadé, qui me sont connues, et qui
appartiennent à ma propre nature, en un mot que moi-même — Descartes, Second Meditation,
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