I posted a definition to start with, one meant for dissection and discussion earlier.
Art is a by product of the creative and talented use of learned skills which produces an image that affects the viewer on emotional, intellectual, or spiritual level. Images that invoke combinations of the above levels are the most successful as art and can be considered high art as opposed to those that invoke only a single level, which can be considered low art.
I think that many here are on the same path and I would welcome discussion to bring us closer to the same destination.
Will
Will,
Before my detailed analysis of your definition, let me make a few general statements about it.
First, it is more complicated than it needs to be or should be. It throws in criteria/considerations that I think are peripheral to the basic definition. More on this later.
Second, it also is an attempt to define objects/pieces/works of art, which I have said seems to complicate the matter, and I think it is more clear to define art as the activity rather than the product of that activity, as I have said before.
Let me parse out some specific comments.
1. The use of the word "by product" make the objects of art sound like mere epi-phenomena of the artistic process, rather than the essential reason for the process in the first place. This seems to gets back to the disagreement about intent, but I think it doesn't even do that. I doubt people merely set out to "create", as if that activity is unconcerned with the creations that flow out as "by-products", and if there really is such little regard for the creations by some artists, then it is unlikely that such mere "by products" would be elevated in your mind to the exalted status of art. The simple words, "product", or "result" would capture the sense of things better, it seems to me.
2. "The creative and talented use of learned skills" IS the activity, the process that I define as art. But this phrase says more than it needs to in my opinion. "Creative" is already implied in the definition, since it is inherently a creative activity with a product, a result, and therefore this word can be eliminated. "Talented" is a judgement call that merely muddies the waters with the peripheral argument about good art vs bad art, IMO, and therefore this word can also be eliminated. Skills are always "learned", so this can go as well, and an intentional activity without "skills" is impossible to imagine, so there is no need to mention skills as well. All this merely complicates the idea of art being a purposeful human activity, and to keep it simple, that was the phrase I used.
3. "Which produces an image that affects the viewer . . . " We are on the same page here, but differ only in that I point this out as the underlying intention/purpose of the activity in the first place, (and I stick by my guns that it is essential

)
4. "On emotional, intellectual or spiritual level." IMO, neither you nor I have quite got this part of the definition right yet, and yet it seems important to do so. What, exactly, is it that the artist hopes to evoke in the viewer, or how exactly must the image affect the viewer, for it to be art as opposed to mere pornography, comedy, illustration, propaganda, intellectual instruction or spiritual/moral exhortation and encouragement? What exactly is the nature of the reaction that art, and only art, induces or is meant to induce? I don't have good words for it, and maybe there aren't completely satisfactory ones. I recall years ago reading Kant's little treatise, "Of the Beautiful and the Sublime", which took a rather unimpressive stab at it, but I don't know if others have done a better job of it. I suspect someone must have, but I don't know. And maybe that is the ineffable something that is in the eye of the beholder, and that makes the idea so hard to pin down. I do know that there are things - for me, for instance, certain aspects of science, mathematics and philosophy - that are not at all artistic or superficially similar to any art, but that evoke deep experiences simultaneously on those three levels, and I imagine it is similar for others in other arenas as well. How does that connect with art, which seems miles apart in most ways?
5. "Images that invoke combinations of the above levels are the most successful as art and can be considered high art as opposed to those that invoke only a single level, which can be considered low art." I don't necessarily disagree with this statement, and find it interesting (though a real stepping-off point for a lot of contentious "elitism"!

) but it seems superfluous to our basic task here of defining art. It does seem to me, however, since you bring it up, that the intensity/quantity of the effect (and also, perhaps, your "echo", or the duration and resonance of the effect) also has to be factored into the equation, not just how how many of these three levels are invoked.
Those are my thoughts.
grouper52/(the other Will)