
For much of history, people were defined by their rank, their religion, or their loyalty to a local lord. You were a subject of the crown or a member of a specific social estate. But as the 17th century ended, a radical idea began to take root: that the individual, not the group, is the primary unit of society.
This shift toward individualism, the belief that each person possesses inherent worth and the right to direct their own life—did not happen in a vacuum. It was forged in the philosophical crucible of John Locke.
Defining the Individual
At its core, individualism posits that we are not merely parts of a larger machine. Instead, we are autonomous beings capable of independent thought. Locke’s breakthrough was elevating reason as the defining faculty of the individual. He argued that because every person is endowed with the same capacity for reason, every person is naturally equal. No one, by nature, has the authority to rule over another without their consent.
Locke’s Landmark Texts
Locke’s arguments, most notably in A Letter Concerning Toleration (1689) and Two Treatises of Government (1690), laid the groundwork for modern ethical and political life:
- A Letter Concerning Toleration: Here, Locke drew a sharp line between civil government and religious belief. He argued that the state exists only to protect “civil interests” – life, liberty, and property—not to save souls. By suggesting that individual conscience should be free from state coercion, he placed the authority of the individual’s own reason above that of the monarch or the church.
- Two Treatises of Government: Locke dismantled the idea of the “divine right of kings,” proposing instead that government is a social contract. He argued that we have “natural rights” to life, liberty, and property that exist independently of any government. If a state fails to protect these rights, the individual, using their own reason, has the moral authority to withdraw their consent.
Why It Matters Today
By emphasizing that reason belongs to the individual, Locke transformed ethics. If the individual is the source of judgment, then the individual must be the primary object of moral concern. This is why we speak of human rights and personal autonomy today; these concepts are the direct descendants of Locke’s insistence that each person is a self-governing entity.
Locke didn’t just write philosophy; he redefined the relationship between the person and the power structures of the world, making the “individual” the hero of the modern story.
Sources:
- John Locke, A Letter Concerning Toleration (1689)
- John Locke, Two Treatises of Government (1690)
- Stanford Encyclopedia of Philosophy, “John Locke’s Political Philosophy“
- Dalvoy, Locke is an individualist out and out. Substantiate this statement.

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