David Ramsay

“A citizen of the United States, means a member of this new nation. The principle of government being radically changed by the revolution, the political character of the people was also changed from subjects to citizens.

The difference is immense. Subject is derived from the latin word 'sub' and 'jacio', and means one who is under the power of another; but a citizen is an unit of mass of free people, who, collectively, possess sovereignty .

Subjects look up to a master, but citizens are so far equal, that none have hereditary rights superior to others. Each citizen of a free state contains, within himself, by nature and constitution, as much of the common sovereignty as another. In the eye of reason and philosophy, the political condition of citizens is more exalted than that of noblemen. Dukes and earls are the features of kings, and may be made by them at pleasure; but citizens possess in their own right original sovereignty.”
― David Ramsay