Meta-ethics Study Guide
Study Guide
📖 Core Concepts
Metaethics – The second‑order study of moral language, judgment, and values (what “good” means, whether moral knowledge is possible).
Cognitivism vs. Non‑cognitivism – Cognitivists say moral sentences state propositions that can be true/false; non‑cognitivists say they express attitudes or prescriptions, not truth‑apt.
Moral Realism vs. Anti‑realism – Realism: moral facts exist independent of minds (naturalist or non‑naturalist). Anti‑realism: no mind‑independent moral facts (subjectivism, error theory, non‑cognitivism).
Universalism vs. Relativism – Universalism holds a single moral standard applies everywhere; relativism holds standards vary by culture or individual.
Value Monism vs. Pluralism – Monism: all values can be reduced to one scale; pluralism: multiple, incommensurable value scales exist.
Moral Epistemology – How we know moral truths: Empiricism (observation), Rationalism (a priori reason), Intuitionism (direct non‑inferential insight), Skepticism (no moral knowledge).
Thin vs. Thick Concepts – Thin: abstract terms (good, wrong). Thick: content‑rich terms (courageous, unjust) that embed descriptive content.
Centralism vs. Non‑centralism – Centralists: thin concepts are prior and needed to understand thick concepts. Non‑centralists: thin and thick concepts can be grasped simultaneously.
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📌 Must Remember
Metaethics deals with meaning, ontology, and epistemology of moral judgments.
Cognitivist ⇒ moral sentences are truth‑apt; Non‑cognitivist ⇒ not truth‑apt.
Moral realism = mind‑independent moral facts; Anti‑realism = denial of such facts.
Naturalist realism = moral properties reducible to natural facts; Non‑naturalist realism = irreducible moral properties.
Ethical subjectivism (cognitivist) = truth depends on attitudes/conventions.
Error theory = all moral propositions are false (no moral properties).
Ideal observer theory = moral truth = what a perfectly rational, fully informed observer would endorse.
Divine command theory = moral rightness = divine approval.
Universalism ↔ Relativism are opposites on the scope of moral standards.
Value pluralism ⇒ some conflicts cannot be resolved by a single metric.
Moral intuitionism ⇒ some moral truths are known directly, without inference.
Moral skepticism ⇒ no one has moral knowledge (often claims it’s impossible).
Centralism: thin concepts → prerequisite for thick concepts.
Non‑centralism: thin & thick concepts are on a parity; thick concepts can ground thin ones.
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🔄 Key Processes
Evaluating a Metaethical Theory
Identify: (a) Semantic stance (cognitivist vs. non‑cognitivist).
(b) Ontological commitment (realist vs. anti‑realist; naturalist vs. non‑naturalist).
(c) Epistemological claim (empiricist, rationalist, intuitionist, skeptic).
Distinguishing Thin vs. Thick Concepts
Spot a term: is it abstract (good) or descriptive (courageous)?
Ask: does the term carry factual content besides normative evaluation?
Choosing Between Universalism & Relativism
Check if the moral claim is intended to apply globally (universal) or is culture‑specific (relativist).
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🔍 Key Comparisons
Cognitivism vs. Non‑cognitivism
Cognitivism: moral sentences = propositions → can be true/false.
Non‑cognitivism: moral sentences = expressions of attitudes/prescriptions → not truth‑apt.
Moral Realism vs. Anti‑realism
Realism: moral facts exist independently of minds.
Anti‑realism: denies mind‑independent moral facts.
Naturalist vs. Non‑naturalist Realism
Naturalist: moral properties reducible to natural/empirical properties.
Non‑naturalist: moral properties irreducible, known a priori or intuitively.
Universalism vs. Relativism
Universalism: one moral standard for all people/time.
Relativism: moral standards vary by society/individual.
Value Monism vs. Value Pluralism
Monism: single scale measures all values.
Pluralism: multiple, incommensurable scales; some conflicts unsolvable by comparison.
Thin vs. Thick Concepts
Thin: abstract, minimal content (good, wrong).
Thick: rich descriptive content (courageous, unjust).
Centralism vs. Non‑centralism
Centralist: thin concepts must be understood first.
Non‑centralist: thin and thick concepts can be learned together.
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⚠️ Common Misunderstandings
“All cognitivists are realists.” – False. Ethical subjectivism is cognitivist but anti‑realist.
“Non‑cognitivism denies moral meaning.” – It denies truth‑aptness, not that moral language is meaningless.
“Error theory says moral statements are meaningless.” – Incorrect; it says they are false because truthmakers don’t exist.
“Universalism always means realism.” – Not; there are universalist subjectivist and prescriptivist accounts.
“Intuitionism = rationalism.” – Intuitionism can be rationalist or empiricist (the “moral sense” variety).
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🧠 Mental Models / Intuition
“Three‑layer metaethical cake” –
Semantics (cognitivist ↔ non‑cognitivist) → what moral language does.
Ontology (realism ↔ anti‑realism) → what moral facts are.
Epistemology (empiricist ↔ rationalist ↔ intuitionist ↔ skeptic) → how we (could) know them.
“Thin‑to‑thick ladder” – Centralists view thin concepts as the first rung; non‑centralists see the ladder as a net where any rung can be a starting point.
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🚩 Exceptions & Edge Cases
Non‑realist cognitivism – Ethical subjectivism treats moral statements as truth‑apt but truth depends on attitudes, not mind‑independent facts.
Quasi‑realism – Non‑cognitivist approach that pretends moral statements are true/false to preserve ordinary discourse.
Ideal observer theory – Hybrid: truth‑apt (cognitivist) but grounded in a hypothetical observer, not a mind‑independent fact.
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📍 When to Use Which
If a question asks whether moral statements can be true/false → test cognitivist vs. non‑cognitivist.
If asked about the existence of moral facts → choose realism vs. anti‑realism.
When the issue is how we know morality → pick empiricism, rationalism, intuitionism, or skepticism.
For cross‑cultural moral claims → decide between universalism and relativism.
When evaluating a conflict between two values → consider value monism (single scale) vs. pluralism (multiple incommensurable scales).
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👀 Patterns to Recognize
“X theory claims moral truth is Y.” – The pattern “X = cognitivist/anti‑realist/etc.” helps map each theory quickly.
“If a view is subjectivist it is automatically anti‑realist but cognitivist.”
“Thick concepts = moral term + descriptive content.” – Spot adjectives like “courageous” → thick.
“Universalist + realist → naturalist or non‑naturalist realism; universalist + anti‑realist → subjectivist or prescriptivist.”
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🗂️ Exam Traps
Confusing anti‑realism with non‑cognitivism – Remember anti‑realism denies mind‑independent facts; some anti‑realists (e.g., subjectivism) are still cognitivist.
Mistaking error theory for relativism – Error theory says all moral statements are false, not merely culture‑dependent.
Assuming “intuitionism = rationalism.” – The outline notes a rationalist variety and an empiricist “moral sense” variety.
Choosing naturalist realism for any realist claim – Realism can be naturalist or non‑naturalist; the distinction hinges on reducibility to natural properties.
Seeing “thin concepts are unimportant” – Centralist arguments treat them as foundational, not trivial.
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