Quotation archive
“The state of nature has a law of nature to govern it, which obliges every one: and reason, which is that law, teaches all mankind... that being all equal and independent, no one ought to harm another in his life, health, liberty, or possessions.”
John Locke
Quote record
Author
John Locke
Source
Unspecified source
Chapter / location
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Tradition
locke · natural-rights · natural-law · state-of-nature · property · liberty · life
Source information
Source details available in the archive references below.
Translation
English translation; consult the named source edition for the original wording.
Context
Read the contextual commentary in this archive entry.
Interpretation
Locke argues that the state of nature is governed by a law of nature that obliges everyone to respect the life, health, liberty, and possessions of others.
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Context
John Locke published the Two Treatises of Government in 1689, a year after the Glorious Revolution that deposed James II and established parliamentary supremacy in England. The Second Treatise is a work of political philosophy written to justify resistance to tyranny and to articulate the principles of legitimate government. In the passage above, Locke presents his most influential argument: the state of nature is not, as Hobbes had claimed, a state of war, but a moral condition governed by natural law.
Locke begins from the premise that all human beings are born equal and independent. No one has natural authority over another, and no one is born subject to the political power of another. From this equality of birth, Locke derives a moral obligation: because we are all equal, no one has the right to harm another. Reason, which is the voice of natural law, teaches that we must respect the life, health, liberty, and possessions of others. This is not a prudential calculation but a moral duty. The state of nature, for Locke, has a law, and that law binds every human being.
Philosophical Meaning
The significance of this passage cannot be overstated. It marks the transition from the Hobbesian view of the state of nature as a condition of war to the Lockean view of it as a condition of moral order. For Hobbes, the state of nature is a state of war because there is no common power to enforce the law. For Locke, the state of nature is governed by natural law even in the absence of civil authority, because reason itself reveals the moral law. The difference is fundamental: Hobbes thinks morality is created by the sovereign; Locke thinks morality exists independently of government.
The passage also establishes the content of natural rights. Locke identifies four fundamental interests that no one may violate: life, health, liberty, and possessions. These are not rights granted by the state but rights inherent in the human condition. They are grounded in the fact that human beings are rational creatures made by God, but Locke's argument can also be understood in secular terms: because we are equal and independent, we have no right to destroy or harm one another.
The claim that "no one ought to harm another in his life, health, liberty, or possessions" is the philosophical foundation of the liberal tradition. It implies that the purpose of government is to protect these rights, not to create them. It implies that government is limited: there are things that no government may legitimately do, because they would violate the natural rights of its citizens. And it implies that when government violates these rights, resistance is justified. The American Declaration of Independence, with its "unalienable Rights" to "Life, Liberty and the pursuit of Happiness," is a direct descendant of Locke's argument.
Modern Relevance
Locke's natural rights framework remains the moral foundation of modern constitutional democracy. The Universal Declaration of Human Rights (1948), the International Covenant on Civil and Political Rights, and virtually every liberal constitution in the world are built on the Lockean premise that certain rights belong to every human being simply by virtue of being human. The idea that government is limited by the rights of citizens is a cornerstone of the rule of law.
Yet Locke's argument also raises questions that remain deeply contested. If natural rights are grounded in reason, what happens when different people reason differently about the content of those rights? If the right to property is a natural right, what are the implications for economic inequality? Can a government that fails to protect the natural rights of its citizens be legitimately resisted, and if so, by what means? These questions are not merely historical. They are at the heart of contemporary debates about human rights, economic justice, and the limits of state power.
Locke's claim that the state of nature is a moral condition also challenges the realist view that politics is simply a matter of power. For Locke, politics is answerable to morality. The question is not merely what governments can do but what they may legitimately do. This moral dimension of politics — the insistence that power must be bounded by right — is Locke's enduring legacy to the political philosophy of the modern world.
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Sources
- 01Two Treatises of GovernmentBy John LockeConsult source
- 02Locke's Political PhilosophyBy Stanford Encyclopedia of PhilosophyConsult source
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Reviewed by ZHAIBIAN AI Editorial Review · 2026-08-10