In a message dated 6/30/2009 10:58:20 P.M. Eastern Daylight Time, atlas@xxxxxxxxxxxxx writes: Or are we just such a bore in all our concerns? --- Not necessarily, Mr. Communication. But yet, you have failed to answer Hume's puzzle. There you are listing as a problem of philosophy, "Where do new ideas come from?" and quoting, totally out of context, a Nazi. Hume is clear in this respect. Imagine 'colour' can be defined objectively by the position in the spectrum (caveat: Dalton) blue scarlet green yellow mauve purple Hume is saying, "Imagine a man ('call him Karl Troegge'). He is given a T-shirt -- Fearing Daltonism, he asks, 'what colour is it'. The professor Paul answers, "The missing shade of Hume's blue". Is it conceivable to rephrase Geary's question, more philosophically. As I say, the issue is not where NEW ideas come from but where ideas (simpliciter) come from. For Hume, but for nobody else, they came from IMPRESSIONS (cfr. expression). Now, Karl Troegge is regaled with a T-shirt of a shade he has no impression of --. Is he imaginative enough to 'fill' in the missing link? Hume say, he 'can't'. (Or, in Walter Ok. -- I intend to write a post on Russian philosophy, today --'s preferred spelling, "he kant"). Hume writes: "He will see a BLANK -- for if he has no prior impression of this shade of blue, he surely cannot form the idea". Unless the idea is a combination of other things? Geary should explain all this. J. L. Speranza Buenos Aires, Argentina >The Missing Shade of Blue is an example introduced by the Scottish philosopher David Hume >to show that it is at least > > conceivable > >that the mind can generate an idea without first being exposed to the relevant sensory experience. >In both A Treatise of Human Nature and An Enquiry Concerning Human Understanding Hume argues that all perceptions of the mind can be classed as >either 'Impressions' or 'Ideas'. He further argues that >There is, however, one contradictory phaenomenon, which may prove, that it is not absolutely impossible for ideas to arise, independent of their >correspondent impressions. I believe it will readily be allowed, that the several distinct ideas of colour, which enter by the eye, >are really different from each other; though, at the same time, resembling. Now if this be true of different colours, it must be no less so >of the different >SHADES of blue; and each shade produces a distinct idea, independent of the rest. >Suppose, therefore, a person to have enjoyed his sight for thirty years, and to have become perfectly acquainted with colours of all kinds, except one >particular >SHADE OF BLUE, for instance, which it never has been his fortune to meet with. Let all the different shades of that colour, except that single one, be >placed before him, descending gradually from the deepest to the lightest; it is plain, that he will perceive a blank, where that shade is wanting, and will be >sensible, that there is a greater distance in that place between the contiguous colours than in any other. Now I ask, whether it be possible for him, from his >own imagination, to supply this deficiency, and raise up to himself the idea of that particular shade, though it had never been conveyed to him by his >senses? >I believe there are few but will be of opinion that he can. >It is also said that when Hume says, “Let all the different shades of that colour, except that single one, be placed before him, descending gradually from the >deepest to the lightest; it is plain that he will perceive a blank, where that shade is wanting”, he is assuming that colours are composed of a set of distinct >independent hues when in reality they form a continuum. In this matter it does seem as if Hume is simply wrong. >after experiencing the full range of colours a little experimentation will soon show that it is much easier for most people to recognise that there is a missing >shade than it is for them to actually form a clear idea of that missing shade. >Fogelin argues that the reason this exception is a genuine exception that can be safely ignored is because despite being simple ideas, colours and >shades can be organised into a highly organised colour space. >Hume allows that some simple ideas can be seen to be similar to one another without them sharing anything in common. The proviso that they do not share anything in common is important because otherwise this feature might be separated off and this would show that the original idea was in fact complex. In a note added to the Treatise commenting on abstract ideas Hume says, >BLUE and GREEN are different simple ideas, but are more resembling than BLUE and SCARLET. >It is this very ability to recognize similarity that enables us to arrange the shades of blue in order and to notice that two adjoining shades differ more than >any two other adjoining shades. ----- **************Dell Laptops: Huge Savings on Popular Laptops – Deals starting at $399(http://pr.atwola.com/promoclk/100126575x122288357 0x1201497211/aol?redir=http:%2F%2Faltfarm.mediaplex.com%2Fad%2Fck%2F12309%2D81939%2D1629%2D0) ------------------------------------------------------------------ To change your Lit-Ideas settings (subscribe/unsub, vacation on/off, digest on/off), visit www.andreas.com/faq-lit-ideas.html