From William Rawle, American lawyer in Philadelphia, who in 1791 was appointed as United States district attorney in Pennsylvania. He was a founder and first president of the Historical Society of Pennsylvania, president of the Pennsylvania Abolition Society, and for 40 years a trustee of the University of Pennsylvania. From A View of the Constitution of the United States, 1829, 2nd Ed.:
The corollary, from this first position, is that the right of the people to keep and bear arms shall not be infringed.
The prohibition is general. No clause in the Constitution could by any rule of construction be conceived to give to congress a power to disarm the people. Such a flagitious attempt could only be made under some general pretence by a state legislature. But if in any blind pursuit of inordinate power, either should attempt it, this amendment may be appealed to as a restraint on both.
For further comments on the Second Amendment, see “The Most Important Amendment.“