The Programming Manifesto... brilliant!
If you're the type that prints out the Agile Manifesto and slaps it on your cubicle to evangelise to anyone who walks by, then head on over to CodeBetter.com. Jeremy Miller has put together what he calls The Programming Manifesto and it's simply brilliant.
It's simple, hits the points that need to be talked about, and is backed by a lot of common sense and goodness that everyone should have embedded into their noggin' at birth. It's not complete (although I'm can't think off the top of my head what complete would look like here) and I'm sure it will evolve (hopefully not into something big and ugly) but this is a great set of ideas to start with. Like Jeremy said, you might agree or disagree with some (or all) of these but it's something to go from. Why not create your own or adopt what you see here. I see maybe this evolving into "The Developers Manifesto" and perhaps a different one called "The Architects Manifesto", but that might be overkill.
In any case, a good read for any developer trying to "get it". Check it out here.