Right. Times change. But people don't. We are the same as our forebears 3000 years ago, (read Proverbs lately?) and many of us much worse. The wisdom of the ancients got us to where we are today. Not bad for staying power. The fault has not been in our lack of "new ideas" but in our infidelity to the enduring truths of the human condition and the limits of what a "government" can do.
Not true. That is why we no longer have slavery, we no longer consider women as property and women vote. Times change and people change.
There are enduring truths - I agree. Our heritiage is worth preserving - but there is also the future - where we are going - and the challenges of the times we live in. For instance - what do we do about energy independence? What about the price of health care? How do we solve social security...etc None of those things were relevant at the time of our founding.