The Bill of Rights secured the individual freedoms that constitute the mainstay of American liberty. The Framers of the Constitution did not include these vital rights in the original version of the document. In fact, the first ten amendments were proposed by Congress to secure ratification of the Constitution and, more importantly, to prevent a second constitutional convention.
Jeffery K. Mitchell,
The Threat of a Second Constitutional Convention: Patrick Henry's Lasting Legacy,
U. Rich. L. Rev.
Available at: http://scholarship.richmond.edu/lawreview/vol25/iss3/6