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17 Free Philosophy Books for Beginners [PDF]

by InfoBooks

Looking for philosophy books for beginners? This collection walks you from your first questions about knowledge, ethics and the mind to the short classics that started it all.

Every book here was chosen because a newcomer can actually finish it. You'll read Socrates defending his life in Plato's Apology, Marcus Aurelius writing notes to himself, and Bertrand Russell explaining philosophy in plain English.

Start with a clear introduction, then read the thinkers themselves in the order they wrote. Every book is free to read online or download as PDF.

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Introduction to Philosophy Books

Not sure what philosophy even studies? These friendly introductions map its big questions, from free will to what we can know.

  • The Problems of Philosophy

    Bertrand Russell asks whether we can know anything for certain, starting with the table in front of you. Written for general readers in 1912, it is still one of the clearest first books in philosophy.

    Bertrand Russell

    Format: PDF 119 pages 0.64 MB
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  • An Introduction to Philosophy

    A friendly college textbook that teaches you how to read and build arguments, then walks through mind, knowledge, God, ethics and free will. Written for students taking their first philosophy class.

    W. Russ Payne

    Format: PDF 161 pages 0.76 MB
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  • Introduction to Philosophy

    A complete open textbook that covers logic, ethics, metaphysics and philosophy around the world, from ancient India to modern Africa. Chapter summaries and review questions make it easy to study on your own.

    Nathan Smith (OpenStax)

    Format: PDF 419 pages 7.12 MB
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  • Introduction to Philosophy: Philosophy of Mind

    What is a mind, and how does it fit into a physical world? Short chapters introduce dualism, physicalism, consciousness and personal identity in plain language, each with questions to think through.

    Heather Salazar (Editor)

    Format: PDF 100 pages 0.82 MB
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Greek Philosophy Books

Should beginners read Plato first? His short dialogues about Socrates are the easiest way in, and Aristotle then asks what makes a good life.

  • The Apology of Socrates

    Socrates stands trial for his life and refuses to apologize for asking questions. The shortest way into Plato and the best place to start. Our own Project Aldus edition.

    Plato

    Format: PDF 51 pages 0.78 MB
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  • Crito

    A friend visits Socrates in prison with an escape plan, and Socrates explains why he will stay. A short dialogue on justice and the law, in our own Project Aldus edition.

    Plato

    Format: PDF 32 pages 0.74 MB
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  • Meno

    Can virtue be taught? Socrates walks a young boy through a geometry puzzle to show how learning works. One of Plato's most accessible dialogues, in our own Project Aldus edition.

    Plato

    Format: PDF 88 pages 0.95 MB
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  • The Symposium

    Seven guests at a dinner party each give a speech about love, ending with Socrates and a drunk Alcibiades. Plato at his most entertaining, in our own Project Aldus edition.

    Plato

    Format: PDF 97 pages 1.17 MB
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  • Nicomachean Ethics

    Aristotle asks what makes a life go well and answers with virtue, habit and friendship. W. D. Ross's classic translation of the founding book of Western ethics.

    Aristotle

    Format: PDF 428 pages 2.03 MB
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Stoic Philosophy for Beginners

Stoicism is philosophy you can use on a Monday morning. These three short books teach you to separate what you control from what you don't.

  • Meditations

    The private notebook of a Roman emperor reminding himself to stay calm, fair and humble. The most popular Stoic book to start with. Our own Project Aldus edition, newly typeset for easy reading.

    Marcus Aurelius

    Format: PDF 316 pages 1.93 MB
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  • The Enchiridion

    Epictetus, a former slave, boils Stoicism down to one rule: know what is in your control and what is not. A short handbook you can read in an evening. Our own Project Aldus edition.

    Epictetus

    Format: PDF 73 pages 0.75 MB
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  • On the Shortness of Life

    Seneca argues that life is long enough if you stop wasting it, with sharp and practical advice on time and purpose. Our own Project Aldus edition.

    Seneca

    Format: PDF 65 pages 0.79 MB
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Modern Philosophy Books

Modern philosophy begins with Descartes doubting everything until he finds one thing he can't doubt. Kant, Hume and Mill then take on reason, freedom and duty in works shorter than their reputation.

  • Discourse on the Method

    Descartes doubts everything until he reaches one certainty: I think, therefore I am. The short, personal book that launched modern philosophy. Our own Project Aldus edition.

    René Descartes

    Format: PDF 99 pages 1.1 MB
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  • An Enquiry Concerning Human Understanding

    Hume asks how we know anything about cause and effect, and finds the answer is habit, not reason. A readable classic of empiricism that shaped Kant and modern science.

    David Hume

    Format: PDF 84 pages 1.41 MB
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  • What Is Enlightenment?

    The short essay that gave the Enlightenment its motto: dare to think for yourself. Our own Project Aldus edition, a few pages you can read in one sitting.

    Immanuel Kant

    Format: PDF 19 pages 0.73 MB
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  • Fundamental Principles of the Metaphysic of Morals

    Kant explains why doing the right thing means acting on rules you could want everyone to follow. The book that introduced the categorical imperative. Our own Project Aldus edition.

    Immanuel Kant

    Format: PDF 135 pages 1.31 MB
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  • On Liberty

    Mill defends freedom of thought, speech and lifestyle, as long as you don't harm others. A clear, powerful argument that still shapes debates about free speech today.

    John Stuart Mill

    Format: PDF 123 pages 0.47 MB
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Most of these books run under 150 pages, so you can finish one this week. Pick the question that bugs you most and start there.

Hooked on the Stoics? Our Stoicism books go deeper into Seneca, Epictetus and their modern readers.

When you're ready for more, explore our full collection of philosophy books by school, era and thinker.

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