Oliver Wendell Holmes, Jr., Carino v. Insular Government of the Philippine Islands…
“ It is true, also, that, in legal theory, sovereignty is absolute, and that, as against foreign nations, the United States may assert, as Spain asserted, absolute power. But it does not follow that, as against the inhabitants of the Philippines, the United States asserts that Spain had such power. When theory is left on one side, sovereignty is a question of strength, and may vary in degree. How far a new sovereign shall insist upon the theoretical relation of the subjects to the head in the past, and how far it shall recognize actual facts, are matters for it to decide. ”
