What is the main idea of the Declaration of Independence?
Answer
That all people have unalienable rights and governments get power from the people
Explanation
The main idea of the Declaration of Independence is that all people possess unalienable rights and that legitimate government draws its power from the consent of the governed. The famous second paragraph distills this view in a few lines. It holds that all men are created equal, that they are endowed by their Creator with certain unalienable rights including life, liberty, and the pursuit of happiness, that governments are instituted among men to secure these rights, and that governments derive their just powers from the consent of the governed.
When any government becomes destructive of those ends, the people have the right to alter or abolish it and institute new government laid on such principles and organized in such form as shall seem most likely to effect their safety and happiness. Thomas Jefferson, the principal drafter, drew on a long tradition of political thought, especially the writings of John Locke, who argued in his Second Treatise of Government in 1689 that people leave a state of nature and form government to protect their natural rights to life, liberty, and property. Jefferson substituted the pursuit of happiness for property, deliberately broadening the goal beyond material possessions.
The phrase unalienable means rights that cannot be transferred or surrendered, even by the person who holds them, because they belong to people simply by virtue of being human. Equal creation does not assert equal abilities or circumstances; it asserts equal moral standing before the law and before any government.
Consent of the governed flips the older monarchical theory that authority flows downward from God to king to subject. In its place the Declaration asserts that authority flows upward from free people who agree to be governed. This is the philosophical core of American self-government, and it appears throughout later American history, in Lincoln's Gettysburg Address, in the Reconstruction Amendments, and in the civil rights movement, which read the Declaration's promise of equality as a standing demand for fuller inclusion of women, Black Americans, and others originally left out.
Why this matters for your test
Grasping the main idea connects every later argument about voting rights, civil rights, and limits on government power back to a shared founding premise. When citizens debate immigration, free speech, or police authority, they are usually arguing about how to apply the Declaration's claims about equal rights and government by consent in a particular twenty-first century setting.
Source: USCIS 128 Civics Questions (2025)
