James Madison wrote the amendments, which list specific prohibitions on governmental power, in response to calls from several states for greater constitutional protection for individual liberties. ... Anti-Federalists held that a bill of rights was necessary to safeguard individual liberty. -i got that from google :D
"<span>Amendments may only be added if they are ratified by each state in the Union" would be the best option, since the Founding Fathers wan't to ensure that the amendment process was taken seriously. </span>