It took the French five tries before they got one that seems to be lasting. We did better, but we needed to reboot in 1787, and afterwards to fight a bloody civil war and amend the Constitution 27 times. And we had the advantage of originally starting as part of a nation that had already done Runnymede and the English Civil War and the Glorious Revolution, and one where the Magna Carta was seen as a reaffirmation of rights and liberties long held.
July Fourth was a great step forward, but a step on a long road, and not the first step. The path to liberty and self-rule can be long and difficult, with many reverses. Those that seek it in Egypt, Turkey and elsewhere have my best wishes. Rise, and rise again.
"Life, Liberty and the pursuit of Happiness." All of us are endowed with these rights. The challenge is, how shall we preserve them?