Two Treatises of Government by John Locke: Study & Analysis Guide

John Locke’s Two Treatises of Government is not merely a historical document but the philosophical bedrock of modern liberal democracy. While written in the late 17th century to justify the Glorious Revolution, its arguments dismantled the prevailing justification for absolute monarchy and constructed a new, enduring theory of legitimate political power based on individual rights and popular consent. Understanding this text is essential for grasping the foundational principles of constitutional government, the concept of inherent human rights, and the ongoing debate about the proper limits of state authority.

Dismantling the Divine Right: The First Treatise

Locke’s First Treatise is often overlooked but is crucial for understanding his revolutionary starting point. Its primary target is the doctrine of the divine right of kings, which argued that monarchs derived their authority directly from God, typically through an unbroken line of succession from the biblical Adam. This theory placed political power beyond human challenge, making it absolute and hereditary.

Locke meticulously refutes this claim, particularly targeting the work of Sir Robert Filmer. He uses scriptural analysis and logical argument to dismantle the idea that Adam held a unique, transferable sovereignty over all humankind. By proving that no such original, paternal political power existed or could be legitimately inherited, Locke clears the philosophical ground. He removes government from the realm of divine mystery and biological accident, preparing the reader to reconceive it as a human invention designed for a specific, rational purpose.

The State of Nature and Natural Rights

The Second Treatise begins by constructing a thought experiment: the state of nature. This is a condition without any established government or written laws. Crucially, Locke’s state of nature is not a savage, warlike chaos (as in Hobbes’s view) but a state of perfect freedom and equality, governed by the law of nature. This law, discoverable by human reason, teaches that "no one ought to harm another in his life, health, liberty, or possessions."

From this law flow our natural rights: the pre-political, inherent rights to life, liberty, and property. These are not granted by any king or parliament; they are possessions of the individual by virtue of being a rational human. In the state of nature, everyone has the executive power of the law of nature—the right to defend their own rights and punish transgressors. However, this system is unstable because people are partial judges in their own cases. This inconvenience leads individuals to seek a better way to protect their rights, forming the basis for civil society.

The Labor Theory of Property

How can individuals claim private property in a world originally held in common? Locke’s answer is his innovative labor theory of property. He argues that every person owns their own body and the labor performed by it. When an individual mixes their labor with a natural resource—for example, by plowing a field, chopping wood, or drawing water—they remove it from the common state and annex it to themselves, making it their property.

This theory grounds property in individual effort and productivity. Locke adds two key provisos: one must leave "enough and as good" for others (the non-spoilage proviso), and one cannot take more than they can use before it spoils (the spoilage proviso). The invention of money, a durable store of value, allows for the legitimate accumulation of property beyond immediate use, justifying larger, unequal holdings. This framework makes property a natural right derived from labor, not a privilege granted by the state, placing a fundamental limit on what government can rightfully control.

The Social Contract and the Ends of Government

People leave the state of nature and enter civil society via a social contract. This is not a historical event but a philosophical model of consent. Individuals voluntarily agree to give up two powers: the right to do whatever they judge fit for self-preservation, and the power to punish offenses against the natural law. In exchange, the community creates a common, neutral judge (government) to enact standing laws, impartially settle disputes, and employ collective force to defend the community.

The sole legitimate purpose of this government is the preservation of the natural rights of its citizens—their lives, liberties, and estates (property). Authority is held on trust. Locke is explicit: if the government violates this trust, either by overstepping its authority (tyranny) or failing to protect rights (negligence), it dissolves the social contract. The people then retain their ultimate sovereign power—the right to revolution—to overthrow that government and institute a new one. Legitimacy flows upward from the consent of the governed, not downward from a sovereign.

Separation of Powers and Lasting Influence

To prevent the concentration of power that leads to tyranny, Locke advocates for a separation of powers, though his model differs from the later, more famous version by Montesquieu. He identifies distinct functions: the legislative (which makes the laws), the executive (which enforces them), and the federative (which handles foreign relations). The legislative power, representing the will of the people, is supreme, but it is not arbitrary; it is bound by natural law and cannot take property without consent.

Locke’s influence is profound and direct. His framework of natural rights and government by consent is the explicit philosophical foundation for the American Declaration of Independence, with its famous triad of "Life, Liberty and the pursuit of Happiness." His ideas form the core of classical liberalism, championing limited government, individual freedom, and private property. The entire enterprise of constitutional democracy, with its checks on power and bills of rights, is an ongoing experiment in applying Locke’s principles.

Critical Perspectives

While foundational, Locke’s theories invite scrutiny from multiple angles. Critics point out tensions within his own work, such as the compatibility of his expansive defense of private property with the "enough and as good" proviso in an era of enclosed resources and colonialism. His state of nature has been challenged as an abistorical abstraction that ignores the social nature of humanity.

Furthermore, the scope of Locke’s "people" has been a subject of debate. His arguments were used to justify revolutionary democracy, yet his personal views and the context of his time excluded many—including women, landless men, and enslaved peoples—from full political personhood. This raises critical questions about who is included in the social contract and who benefits from the protection of natural rights. Modern libertarians draw heavily on his property rights arguments, while social contract theorists continue to debate the conditions and limits of consent.

Summary

• Legitimacy from Consent, Not Divinity: The First Treatise systematically refutes the divine right of kings, arguing political power is a human construct, not a God-given inheritance.
• Government’s Purpose is Rights Protection: The core of Locke’s Second Treatise is that individuals possess pre-political natural rights to life, liberty, and property. The only legitimate purpose of government is to protect these rights.
• Property stems from Labor: Locke’s labor theory of property justifies private ownership by linking it to individual effort and productivity, making it a fundamental right government must secure.
• The Right to Revolution: Government exists via a social contract based on the consent of the governed. If it violates its trust by becoming tyrannical or failing to protect rights, the people retain the right to dissolve it and establish a new one.
• A Foundational Blueprint: Locke’s ideas on natural rights, consent, and separation of powers directly inspired modern liberal democracy and constitutionalism, forming the enduring foundation for debates about liberty, equality, and legitimate authority.