The United States Constitution
Our nation was established upon a set of principles that value life, individual liberty, property, and the pursuit of happiness. These guiding principles and enumerated rights are not platitudes, nor are they derived from any particular government. Rather, they are universal and fundamental conferred by God, nature and reason. Thomas Jefferson wrote "...that they are endowed by their Creator with certain unalienable Rights..." affirming America's foundation in natural law.
As the first and only nation to be founded on natural law, the U.S. Constitution enumerates powers for the federal government derived to it from the consent of the governed. Additionally, the U.S. Constitution preserves and protects the people and the enjoyment of natural rights which predated its convention and ratification.
Our Constitution is the culmination of the best reasoning of men of all time. As such, it serves as the world's longest surviving and active codified constitution. The guiding principles therein have provided Americans with the most protected individual rights, whilst guaranteeing more freedom, than any people throughout history. We should commit to learning and understanding our Constitution's bases in natural law. We should commit to practicing the responsibilities which it requires. And we should protect and defend our Constitution, Liberty, and the American way of life.
"Liberty must at all hazards be supported. We have a right to it, derived from our Maker. But if we had not, our fathers have earned and bought it for us, and the expense of their ease, their estates, their pleasure, and their blood." John Adams