What is rule of law like in definition

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Rule of law, the mechanism, process, institution, practice, or norm that supports the equality of all citizens before the law, secures a nonarbitrary form of government, and more generally prevents the arbitrary use of power. Arbitrariness is typical of various forms of despotism, absolutism, authoritarianism, and totalitarianism.

the declaration 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….”