What are the first three words of the Constitution that express the idea of self-government?

The phrase "We the People" serves as a powerful declaration of self-government, emphasizing that the authority and legitimacy of the government stem from the consent of the governed. It signifies that the foundation of the United States' political system is built upon the collective will and agreement of its citizens, rather than being derived from a monarchy, external power, or any singular ruling entity. This concept underpins the nation's democratic ideals and the belief that the people are sovereign.

By using the term "People," the Constitution reinforces the idea that individual citizens have the right to participate in the political process and influence governance. This phrase sets the tone for the entire document, highlighting the role of citizens in shaping their government and holding it accountable, a fundamental aspect of American democracy. The other options do not capture this essence of collective governance by the populace itself.