The clearest picture of any country is rarely the one it holds of itself. It is the one held by the people who do not live inside it, who owe it nothing, and who see the gap between what it says and what it does with an outsider’s clean eye.

As the United States turned 250, the BBC asked people from Brazil to India to Egypt what they made of America now, and the answer that kept returning was two words held in tension: beautiful and terrible. In the same week, a volunteer sorting a British archive turned up a rare early copy of the Declaration of Independence — one of only eleven known to exist anywhere in the world.

Those two facts belong together. The founding was, above all, an export. The language of the Declaration did not stay in Philadelphia; it traveled, was translated, was borrowed by movements the signers never imagined and would not all have welcomed. America’s strongest claim on the world was never its army or its markets. It was an idea about self-government that other people could pick up and turn against their own rulers.

The idea and the practice have never fully matched, and the world has always seen both. The beautiful half is the promise — rights, mobility, the notion that where you start need not decide where you end. The terrible half is the distance between that promise and its delivery, at home and abroad, measured by people who have been on the receiving end of both.

The strongest case for America’s standing is that the idea still draws. People still move toward it, borrow its language, and measure their own governments against a standard it wrote down first. That is a form of power no rival has replicated.

The strongest case against is the ledger of the terrible half: interventions that did not end as promised, an inequality that undercuts the pitch, a gap between the words on the parchment and the life on the ground. To much of the world these are not footnotes. They are the headline.

How the world sees America depends entirely on where the viewer is standing — ally or rival, aspirant or casualty, a person for whom the idea opened a door or one for whom the practice closed one.

That a founding copy of the Declaration surfaced in a British archive, one of eleven left, is the whole story compressed into a single object. The document that broke from Britain was preserved by Britain. The quarrel ended. The idea, for better and for worse, outlived it.

American Life is independent analysis.