Mind

What Is Personal Identity?

Personal identity is the philosophical question of what makes a person the same person over time — through memory, bodily continuity, or psychological continuity — and what ultimately matters in our survival.

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What Is the Explanatory Gap?

The explanatory gap is the failure of physical and functional accounts of the brain to explain why there is anything it is like to have an experience — the gap between neural description and subjective feel.

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What Is Functionalism?

A philosophical explanation of functionalism in philosophy of mind, the view that mental states are defined by their causal roles rather than their physical composition.

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What Is Qualia?

A philosophical explanation of qualia — the subjective, qualitative properties of conscious experience — examining their definition, the major arguments for and against their existence, and their place in philosophy of mind.

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What Is the Brain in a Vat?

A philosophical explanation of the brain in a vat thought experiment, a modern skeptical scenario that asks whether you can know you are not just a brain receiving simulated experiences.

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What Is the Chinese Room Argument?

A philosophical explanation of John Searle's Chinese Room argument, which challenges the claim that a computer running the right program could genuinely understand language or possess a mind.

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What Is the Hard Problem of Consciousness?

A philosophical explanation of David Chalmers's hard problem of consciousness — the question of why and how physical processes give rise to subjective experience — and the major responses it has provoked.

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What Is the Turing Test?

A philosophical explanation of the Turing Test, Alan Turing's 1950 proposal for determining whether a machine can think, and the major objections it has provoked in philosophy of mind and artificial intelligence.

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What Is Consciousness?

A philosophical introduction to consciousness, examining what subjective experience is, why it poses the hard problem, and how thinkers from Descartes to contemporary philosophy of mind have approached its mystery.

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What Is Dualism?

A philosophical introduction to dualism, examining the view that reality consists of two fundamentally different substances — mind and matter — from Plato and Descartes to contemporary philosophy of mind.

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What Is the Self?

A philosophical introduction to the self — the persistent subject of experience — through Descartes's thinking substance, Hume's bundle theory, and contemporary theories of personal identity.

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Attention: Meaning, Philosophy & Wisdom

A philosophical introduction to attention: what it means to attend, how thinkers from William James to the contemplative traditions have understood it, and why the wise direction of attention shapes perception, action, and the quality of life.

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Introspection: Meaning, Philosophy & Wisdom

A philosophical introduction to introspection: what it means to look inward, how philosophers and psychologists have understood self-examination, and why introspection is a foundation of self-knowledge and wisdom.

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Consciousness: Meaning, Philosophy & Wisdom

A philosophical introduction to consciousness, examining its meaning, the mind-body problem, the hard problem of consciousness, and the central debates in the philosophy of mind about the nature of subjective experience.

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Rationality

A philosophical exploration of rationality as the capacity for reason-based thought and action, from Greek logos through Kantian reason to contemporary debates about bounded rationality.

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Decision Making

A philosophical exploration of decision making through Aristotle's practical judgment, Stoic rationality, existential choice, and the relationship between character, emotion, and action.

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Alan Turing: Computation, Intelligence & Philosophy

Alan Turing (1912–1954) created the mathematical theory of computation, broke the Enigma code, and asked the question that still defines AI: can machines think? His Turing machine, Church-Turing thesis, and Turing test transformed logic, philosophy of mind, and computer science.

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Maurice Merleau-Ponty

Maurice Merleau-Ponty (1908-1961) was a French phenomenologist who transformed modern philosophy by centering the lived body, arguing that perception is not a representation of the world but our primary mode of being in it.

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Gottlob Frege: Philosophy, Quotes & Legacy

Explore Gottlob Frege's philosophy, from the Begriffsschrift and the sense-reference distinction to his logicist program and his founding influence on analytic philosophy, philosophy of language, and modern logic.

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Henri Bergson

Henri Bergson redefined philosophy through duration, intuition, and the élan vital. Explore his ideas on time, consciousness, creative evolution, and his lasting influence on modern thought.

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Daniel Dennett: Philosophy, Quotes & Legacy

Explore Daniel Dennett's philosophy of mind, his intentional stance theory, multiple drafts model of consciousness, and bold defense of Darwinian naturalism.

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David Chalmers: Philosophy, Quotes & Legacy

Discover David Chalmers' philosophy, the hard problem of consciousness, philosophical zombies, and his case for panpsychism in the philosophy of mind.

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Hilary Putnam: Philosophy, Quotes & Legacy

Explore Hilary Putnam's philosophy, from semantic externalism and the Twin Earth thought experiment to internal realism, the brain in a vat argument, and his transformative influence on analytic philosophy.

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John Searle: Philosophy, Quotes & Legacy

Explore John Searle's philosophy, including the Chinese Room argument, speech act theory, biological naturalism, and his influential theory of intentionality.

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Saul Kripke: Philosophy, Quotes & Legacy

Discover Saul Kripke's philosophy, from rigid designation and necessary a posteriori truths to his revolutionary work in modal logic and the causal theory of reference.

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W.V.O. Quine: Philosophy, Quotes & Legacy

Explore W.V.O. Quine's philosophy, from the two dogmas of empiricism and ontological relativity to naturalized epistemology and his influential holistic view of knowledge.

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Bertrand Russell

A comprehensive introduction to Bertrand Russell, the British philosopher who co-authored Principia Mathematica, developed the theory of descriptions, and shaped the analytic tradition through his work on logic, language, and knowledge.

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Ludwig Wittgenstein

Austrian-British philosopher who transformed twentieth-century thought through his work on language, logic, and the limits of what can be said.

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William James

A comprehensive introduction to William James, the American philosopher and psychologist who founded pragmatism, exploring his radical empiricism, theory of truth, will to believe, and philosophy of religion.

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René Descartes

French philosopher and mathematician whose method of systematic doubt established a new foundation for knowledge and inaugurated modern philosophy.

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Thinking, Fast and Slow

An evidence-led guide to Daniel Kahneman's Thinking, Fast and Slow: the two systems of the mind, the heuristics and biases that shape judgment, prospect theory, and the two selves that disagree about happiness.

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Monadology

An introduction to Leibniz's Monadology, the classic metaphysical text arguing that reality is composed of simple, immaterial substances called monads, governed by pre-established harmony and the principle of sufficient reason.

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Naming and Necessity

A philosophical guide to Saul Kripke's Naming and Necessity, examining rigid designation, proper names, natural kinds, and necessary a posteriori truths in language.

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Meditations on First Philosophy

A philosophical guide to Descartes's Meditations on First Philosophy, examining the method of doubt, the cogito, proofs of God, and mind-body dualism — the foundational text of modern philosophy.

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Dualism

An introduction to dualism, the view that reality contains two fundamentally different kinds of things — mind and matter — from Plato and Descartes to contemporary property dualism.

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Panpsychism

An introduction to panpsychism, the view that consciousness is a fundamental and ubiquitous feature of reality, from the ancient Greeks to Leibniz and the contemporary revival in philosophy of mind.

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Philosophy of Neuroscience

An introduction to the philosophy of neuroscience — the study of the concepts, methods, and explanatory limits of brain science, from mechanistic explanation to the neural correlates of consciousness.

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Philosophy of Psychology

An introduction to the philosophy of psychology — the study of the assumptions, methods, and explanatory claims of psychological science, from folk psychology to the cognitive revolution.

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Materialism

An introduction to materialism, the philosophical view that reality is fundamentally physical, from the ancient atomists through Hobbes and Marx to contemporary physicalism and the mind-body problem.

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Philosophy of Artificial Intelligence

An introduction to the philosophy of artificial intelligence, examining whether machines can think, the nature of consciousness, and the ethics of AI systems.

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Analytic Philosophy

An introduction to analytic philosophy, the tradition emphasizing logical analysis, language, and clarity, from Frege and Russell through Wittgenstein and Quine to the contemporary divide.

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Philosophy of Mind

An introduction to the philosophy of mind, examining consciousness, mental states, the mind-body problem, dualism, physicalism, and functionalism from Descartes to contemporary cognitive science.

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Phenomenology

An introduction to phenomenology as the philosophical method of describing lived experience, from Husserl through Heidegger and Merleau-Ponty to contemporary practice.

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Philosophy of Mind & Consciousness: A Learning Path Through Mind, Self & Reality

A structured learning path through the philosophy of mind and consciousness — from Descartes' dualism and the hard problem of consciousness to personal identity, free will, and the possibility of artificial consciousness.

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Understanding Yourself

A learning path through self-knowledge, identity, wisdom, and practical discernment — from Socrates to modern philosophy.

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