Galtland Index

Natural Law

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Natural Law

Natural law is the claim that justice is not whatever a ruler decrees but something objective, grounded in human nature and knowable by reason — a standard above the positive law of any state. This hub maps the classical canon the wiki ingested as full texts, following the lineage from Aristotle and Cicero through Aquinas, Grotius, Locke, and Spooner into the modern libertarianism of Rothbard. It is the deep root of the wiki’s natural-rights branch: the moral foundation that grounds self-ownership and nonaggression, and the one Mises’s consequentialism deliberately declines.

The Core Claim

The synthesis lives in Natural Law and Natural Order: there is a justice discoverable by reason that binds prior to, and independently of, enacted legislation. Positive law can conform to it or violate it, but cannot create or abolish it. That single move — a moral standard the state does not author and cannot repeal — is what makes natural law politically radical, and it is why the tradition runs from ancient philosophy straight into a critique of state legitimacy.

The Lineage

Aristotle (Aristotle) opens the canon by distinguishing natural from merely legal justice in the Nicomachean Ethics and rooting the good life in human nature and the polis in the Politics — though the wiki rejects his defense of natural slavery. Cicero (Cicero) gives the tradition its most quoted formula, carrying Stoic natural law — true law as right reason in agreement with nature — into the Western legal inheritance through De Legibus and De Re Publica. Aquinas (Thomas Aquinas) systematizes it in the Treatise on Law, ordering eternal, natural, human, and divine law and defining natural law as reason’s participation in a rational order aimed at the common good.

The early-modern turn secularizes the foundation. Grotius (Hugo Grotius) grounds natural law in human nature and sociability such that it would hold etiamsi daremus — even if we granted there were no God — and founds international law on it. Pufendorf (Samuel Pufendorf) systematizes the discipline between Grotius and Locke, deriving the duties of non-injury and contract from human sociality. Locke (John Locke) then delivers the politically decisive version in the Second Treatise: pre-political rights to life, liberty, and property, government by consent, and a right of revolution when it breaks the trust — the lineage’s bridge from moral philosophy to a theory of legitimate authority. Thomas Paine (Thomas Paine) popularizes the rights tradition for a revolutionary public.

The tradition sharpens into anti-statism with Spooner (Lysander Spooner), whose Natural Law; or the Science of Justice turns the doctrine against legislation itself: if justice is a natural science, man-made law adds nothing to it and derives no authority from it. Rothbard completes the arc, reconstructing a full libertarian ethics on this foundation in The Ethics of Liberty.

Into Libertarianism

Natural law is what makes the wiki’s natural-rights branch a moral argument rather than only an economic one. From the objective-justice premise, the corpus derives self-ownership and the property and nonaggression rules collected in Nonaggression and Property Rights. Bastiat’s The Law states the same standard in the idiom of legal plunder, and the market-anarchist tradition in The Production of Security reads the state’s monopoly as a standing violation of it. This is the branch Libertarianism sets against the consequentialist wing — same conclusions, a different foundation.

The Salamanca Bridge

The canon also connects to economics. The School of Salamanca — the sixteenth-century Spanish scholastics who extended the Thomist natural-law tradition — were simultaneously natural-rights theorists of consent and resistance and proto-Austrian economists of subjective value, just price, and money. They are the historical hinge where this hub meets Money and Banking and Austrian Economics: the same tradition that grounds rights also seeded the analysis of markets.

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