This is a wonderful (and classic) question, sometimes referred to as the 'inverted spectrum' thought experiment -- but it turns out that the philosophy of color (and color perception) are far more complicated than one might intuitively think, given our everyday familiarity with and intuitions about colors ... The short, easy answer to your question is of course yes: it certainly seems conceivable that different individuals label different color perceptions with the same name (no need to insist on the stronger thesis, as you actually phrase it, that each individual's color perception is different from every other's, is there?). Moreover I believe that, on a simple level, the 'yes' answer has been empirically demonstrated, more or less: different people will identify rather different wavelengths as 'yellow' say (which is strictly neutral on what's going on inside them, but at least suggestive of the 'yes' answer). But one can get very sophisticated here and perhaps build one's way to a 'no' answer, so the...

Apparently you have, if you wrote this question! :-) (People also like to talk about the immense number of neural connections within our brains -- I don't know how that number compares to the ones you mentioned, but I believe it's pretty brain-melting too!) ap

Great question. I would think, though, that the onus would be on the skeptic raising the question to give solid reasons why communication would NOT be possible. Already on earth we find different cultures with different languages, different "habits," different ways of thinking and ethics, and in fact even different 'types of logic' apparently (or so some cultural psychologists have argued at various points). But why should that make some form of communication impossible? True, the process of translating between such languages might be more complicated than it would be if more were shared; and true, more miscommunication might well occur during the translations, due to all sorts of pragmatic reasons. But that seems very far removed from holding a strong claim such as "communication is impossible." Absent such an explicit argument, and given the kind of counterevidence different earth cultures already present, I would have to go with a "yes" answer to your question! (By the way, Donald Davidson famously...

Join the club ... I'm sure you'll hear from Nietzsche specialists, but as a non-specialist -- but great admirer -- let me merely say that TSZ is perhaps not the best place to start to begin to understand this amazing thinker and writer ... a fairly clear, and more straightforward, account of some of his main ideas (anyway) might be found in On the Genealogy of Morals, another famous work as stylistically rich as TSZ but a bit more 'conventional' (if that word is ever applicable to Nietzsche) ... So rather than try to answer your question, I'll merely suggest you read something else! .... best ap

Well, one CAN do that, since I myself in fact do (and many, many others) .... But of course what you're asking is more like "is it morally permissible to violate one's own principles?", or something like that ... Assuming that one's principles are correct (i.e. that you are right to believe that animals shouldn't be willfully killed etc.), then it seems clear that the answer must be no, because it's not morally permissible to do that which is morally impermissible! But that seems so clear that I wonder if that really is, ultimately, your question. Weakness of will is a well-known (and much discussed phenomenon), and a paradigm case of weakness of will is precisely that where you cannot bring yourself to do that which is right (and so when I succumb, and eat meat, I condemn myself for not being able to live up to my own standards). But you seem to be getting at a much deeper question, which the weakness of will case is merely a simple case of: is there a moral obligation to avoid contradictions, to...

I don't really, but it is one of my biggest pet peeves, from the perspective of one grading students' philosophy papers! ... My guess would be that on many such occasions, the person means something like "valid" -- where "valid" does NOT mean the technical deductive notion but something closer to "true"! (They will often say, "P is not logical," clearly meaning that P is false ...) Occasionally people use it with a defeater: "P seems logical, and yet here's why it's false ..." On such uses they seem to mean "apparently true, even if not really true." Rarely do they use it with anything very close to its basic sense, if not quite "deductively valid" then at least bearing some relationship to arguments and conclusions (where to say "P is logical" would be to say "P is based on some form of argument") .... ap

Great question. My first thought is that moral rules are invariably qualified ("all else being equal") -- certain actions may be permissible in certain conditions, but presumably not when doing them overrides some other moral obligation. Since (one assumes here) the convict was indeed guilty, and justly convicted, and if (one assumes here) capital punishment is itself permissible, then I'd be inclined to hold that this would NOT be a case of permissible self-defense -- self-defense, yes, but here the only way for him to defend himself is to do some harm which clearly overrides whatever value is in the self-defense -- given the assumptions above, the executioner is by no means guilty of any wrong-doing in performing the execution, so this would amount to killing an innocent person in order to defend a guilty one ... Self-defense is permissible all else being equal, but this sort of case does not strike me as one where all else IS equal ... hope that's useful ap

Great issue. If you think about it on an individual level, of course "piracy" is wrong: you are stealing that work from its producer. (The word "piracy" pretty much reflects that!). And as long as there are specific copyright laws that forbid it, then doing so is obviously wrong (at least in the sense of violating the law), whether or not you would have purchased the work anyway. But maybe we should think of it on a collective level, and ask questions such as "Are the laws in question themselves good/just laws?" (which I take Allen to be raising) and "Would a better system overall allow free downloading?" (where "better" obviously has many facets, including ethical ones). To be sure, part of answering those questions involve empirical considerations: do "producers of work" collectively do better, make more money, etc., when one allows liberal copying of their work? Think Grateful Dead, just for one select example: the 'bootleg' industry they themselves supported seems to have worked out pretty...

Thanks for your question, and a good one it is. One quick answer is that doing philosophy helps you clarify, to yourself, your own thoughts, feelings, opinions, and values. Obviously one needs to earn a living; but just how much, and what kind of living, may be pretty flexible. Presumably, you'd want to pursue a career that enriches you, develops you, and yet does so in a way harmonious with (and perhaps furthering) who you fundamentally are (your beliefs, opinions, values, etc.). That you're consulting with a priest suggests that religious concerns are important to you .... and one (presumably) consults with a priest hoping that the advice given will help one develop one's religious side and pursue the choices that best fit one's religious self. Well, so too consulting with philosophy -- doing philosophy, reading it, thinking about it, etc. -- can help you not only develop yourself but ALSO pursue the choices that best fit who you are ... (You may even want to subject your religious elements to...

It's hard, in general, to 'blame' children for anything, being not yet responsible and beneath the 'age of reason' ... but perhaps we might blame their parents for allowing them to learn about such things and engage in them? Perhaps -- but as the father of three small boys who turn every toy into a weapon, whose favorite form of play is 'fighting bad guys' (which often include each other), it's hard to imagine STOPPING this behavior. We do our best to shield them from it, but it's everywhere -- in kid's programming, in kid's toys, in kids' lunchbags's patterns, and in their peers at school -- you cannot shut it out, short of homeschooling and utter social isolation. So I'm not sure one can blame the parents much, either .... (and perhaps one ought to focus on restraining/steering the behavior: i.e. make sure they understand it is just play, and you cannot REALLY hurt someone, and perhaps promote the creative/fantasy elements of it .....?) best, ap