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John Locke

John Locke is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand John Locke rather than just read about it. In short: John Locke (; 29 August 1632 – 28 October 1704) was an English philosopher and physician, widely regarded as one of the most influential of the Enlightenment thinkers and commonly known as the "father of liberalism". His important works include A Letter Concerning Toleration (1689), Two Treatises of Government (1689/90), both published anonymously, and An Essay Concerning Human Understanding (1689/90).

John Locke — main illustration
John Locke — illustration

Key takeaways

  • John Locke belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect John Locke to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of John Locke from memory before moving on to harder problems.

Reference excerpt

John Locke (; 29 August 1632 – 28 October 1704) was an English philosopher and physician, widely regarded as one of the most influential of the Enlightenment thinkers and commonly known as the "father of liberalism". His important works include A Letter Concerning Toleration (1689), Two Treatises of Government (1689/90), both published anonymously, and An Essay Concerning Human Understanding (1689/90). His writing on toleration contends that religion is a matter for the individual and that the churches are voluntary associations, ruling out religious coercion and uniformity; these lead to the idea of separation of church and state. His Two Treatises on Government argues for government based on the consent of the governed and the right to revolt against tyrannous government which has lost consent. The Two Treatises are believed to have influenced the language that Thomas Jefferson chose in his drafting the July 1776 Declaration of Independence during the War of American Independence. Locke lived through the tumultuous political era of the English Civil War and Commonwealth of England after the execution of Charles I, Restoration of the Stuart monarchy, and the 1688 Glorious Revolution. These experiences affected his political thinking and life choices. During the Interregnum, Locke won a place at Christ Church, Oxford after attending the prestigious Westminster School. He spent 15 years at Oxford, first as a student, then as a tutor, pursuing medical and other scientific interests in a circle of friends. In 1666, Locke became an associate of Lord Shaftesbury, a key figure in English political life after the Restoration (1660), and Locke was appointed to governmental posts at Shaftesbury's recommendation. Locke was elected a Fellow of the Royal Society (1668). When Shaftesbury fell from royal favour and died shortly thereafter, Locke went into political exile for five years in the Netherlands (1683–85). There he wrote some of his most important works. During this period, he gained the patronage of Thomas Herbert, 8th Earl of Pembroke. Locke returned to England from exile, accompanying Queen Mary II in 1689. He published three of his most notable works soon after his return. He served as a Commissioner of Trade and Plantations, then retired from public life due to ill health. For the last fourteen years of his life, he lived in the household of Sir Francis Masham and his wife, philosopher Lady Masham, whom Locke had known since she was a young woman. Considered one of the first of the British empiricists, following the tradition of Francis Bacon, Locke is equally important to social contract theory. His work greatly affected the development of epistemology and political philosophy. His writings influenced Voltaire, Jean-Jacques Rousseau, and many Scottish Enlightenment thinkers, as well as the American Revolutionaries. His contributions to classical republicanism and liberal theory are reflected in the United States Declaration of Independence. Internationally, Locke's political-legal principles continue to have a profound influence on the theory and practice of limited representative government and the protection of basic rights and freedoms under the rule of law. Locke's philosophy of mind is often cited as the origin of modern conceptions of personal identity and the psychology of self, figuring prominently in the work of later philosophers, such as Rousseau, David Hume, and Immanuel Kant. He postulated that, at birth, the mind is a blank slate, or tabula rasa. Contrary to Cartesian philosophy based on preexisting concepts, he maintained that we are born without innate ideas, and that knowledge is instead determined only by experience derived from sense perception, a concept now known as empiricism. Locke is often credited for describing private property as a natural right, arguing that when a person—metaphorically—mixes their labour with nature, resources can be removed from the common state of nature.

Ancestry, early life, and education

… excerpt ends here. Continue reading the full article.

Illustrations

John Locke illustration
John Locke illustration
John Locke: An engraved memorial plaque to Locke at Oxford
An engraved memorial plaque to Locke at Oxford
John Locke: Christ Church College, Oxford
Christ Church College, Oxford
John Locke: John Locke, earliest known portrait, John Greenhill c. 1672-73
John Locke, earliest known portrait, John Greenhill c. 1672-73

Worked examples

Example 1 — a first encounter with John Locke

Start with the simplest possible case. Write down what John Locke claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to John Locke before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about John Locke ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of John Locke

In research
John Locke appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses John Locke in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
John Locke is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1632 births, 1704 deaths, 17th-century English Christian theologians, so understanding it makes those chapters shorter.
In everyday life
Look for John Locke outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study John Locke in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what John Locke means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain John Locke out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is John Locke in simple terms?

John Locke (; 29 August 1632 – 28 October 1704) was an English philosopher and physician, widely regarded as one of the most influential of the Enlightenment thinkers and commonly known as the "father of liberalism". His important works include A Letter Concerning Toleration (1689), Two Treatises o…

Why does John Locke matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study John Locke?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on John Locke.

Tags

  • 1632 births
  • 1704 deaths
  • 17th-century English Christian theologians
  • 17th-century English male writers
  • 17th-century English medical doctors
  • 17th-century English philosophers
  • 17th-century English writers
  • Alumni of Christ Church, Oxford
  • Anglican philosophers
  • British critics of atheism
  • British fellows of the Royal Society
  • British philosophers of law

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