The Declaration of Independence states:
We hold these truths to be self-evident, that all men are created equal, that they are endowed by their Creator with certain unalienable Rights, that among these are Life, Liberty and the pursuit of Happiness.That to secure these rights, Governments are instituted among Men, deriving their just powers from the consent of the governed,That whenever any Form of Government becomes destructive of these ends, it is the Right of the People to alter or to abolish it, and to institute new Government, laying its foundation on such principles and organizing its powers in such form, as to them shall seem most likely to effect their Safety and Happiness.[4]
Historian Pauline Maier argues that this narrative asserted "the right of revolution, which was, after all, the right Americans were exercising in 1776"; and notes that Thomas Jefferson's language incorporated ideas explained at length by a long list of 17th-century writers, including John Milton, Algernon Sidney, John Locke, and other English and Scottish commentators, all of whom had contributed to the development of the Whig tradition in 18th-century Britain.[4]
The right of revolution expressed in the Declaration was followed immediately with the observation that long-practiced injustice is tolerated until sustained assaults on the rights of the entire people have accumulated enough force to oppress them;[5] then they may defend themselves.[6][7] This reasoning was not original to the Declaration, and can be found in many prior political writings: Locke's Two Treatises of Government (1690); the Fairfax Resolves of 1774; Jefferson's own Summary View of the Rights of British America; the first Constitution of Virginia, which was enacted five days prior to the Declaration;[8] and Thomas Paine's Common Sense (1776):
Prudence, indeed, will dictate that Governments long established should not be changed for light and transient causes; ...mankind are more disposed to suffer, while Evils are sufferable, than to right themselves by abolishing the Forms ("of Government", editor's addition) to which they are accustomed. But when a long train of abuses and usurpations, pursuing...a design to reduce them under absolute Despotism, it is their right, it is their duty, to throw off such Government, and to provide new Guards for their future security.[9]