I actually didn't misstate the Ten Commandments, I just used the ones provided by the Evangelical Lutheran Church.
*peruses
wikipedia* Well, that doesn't make any sense.
I think the Anglican, Reformed, and other Protestants have this one right.
Plain, rational observations? That just doesn't seem to fit in, I'm afraid, considering that greed is an integral part of humanity and many of the commandments deny the right to practice that.
It's based on plain, rational observations that unrestrained greed, for example, harms people. There are 2 out of the 10 commandments as I count them (or 3 as you do, but not "many") that might restrain one's greed (#8 and #10 in my numbering) and they both deal with not wanting stuff that belongs to someone else. And that's just common sense for how to run a marginally peaceful society, no matter what Ayn Rand may tell you.
It just seems to me that Commandment #10 and Commandment #4 are going to be broken no matter what.
Not necessarily. Sure, every teenager has spats with Mom and Dad, but you can still respect them at the end of the day. And coveting isn't just saying to your neighbor, "Ooh, you have a Wii, I want one of those" - it's wanting
his Wii, or his wife, or whatever... not in idle fancy or even in serious bargaining, but with malicious intent.
And furthermore, the value of a moral ideal isn't dependent on whether or not we can meet it. Christianity recognizes that the law - such as the 10 Commandments - often just points out to us where we've gone wrong. That's why we emphasize God's love and grace, and our faith in response expressed in works, as the means to salvation, rather than some lifelong, flawless execution of the letter of the law.
And I see no reason why we should follow some "laws" laid out by "God", especially if you don't worship that "God" at all. The Commandments make rational sense, yes, but I wouldn't follow them just because "God" told me to.
And certainly I would never ask you to. Follow them because they're rational - that's why, having grown out of the Sunday school explanations, I still do - and still would, even if I didn't also believe they are rational because instated for a rational world by a rational God. But for people unable or disinclined to pursue rational, as opposed to merely selfish, lines of moral reasoning, the 10 Commandments give a very summary outline of and training in some basic, rational, moral findings. For those in every age who refuse to listen to simple reason...