* "Every Constitution, then, and every law, naturally expires at the end of nineteen years. If it be enforced longer it is an act of force and not of right." - Letter to James Madison, 1789<ref>[https://books.google.com/books?id=p6o-AAAAYAAJ&pg=PA175 The Life and Writings of Thomas Jefferson: Including All of His Important Utterances on Public Questions, Compiled from State Papers and from His Private Correspondence]</ref> | * "Every Constitution, then, and every law, naturally expires at the end of nineteen years. If it be enforced longer it is an act of force and not of right." - Letter to James Madison, 1789<ref>[https://books.google.com/books?id=p6o-AAAAYAAJ&pg=PA175 The Life and Writings of Thomas Jefferson: Including All of His Important Utterances on Public Questions, Compiled from State Papers and from His Private Correspondence]</ref> |