A shopkeeper finds that a customer has paid too much. No one will ever know, and the law does not force him to return it. Should he?
This lesson shows what ethics is and how it is organised. It separates ethics from law and from morality. It then covers the main ways to decide what is right, and the Greek and Latin roots of the words.
At a glance
Four key facts on this topic
Contents
What is ethics, and how is it organised?
What is ethics?
1.1 Why does a simple question like the shopkeeper's matter?
Because the law is silent, and only ethics is left to answer. A customer overpays and nobody will ever know. Must the shopkeeper return the money? That is our own example. It shows what ethics is for.
1.2 What does ethics mean in simple words?
Ethics is the study of right and wrong conduct. It does not just describe what people do. It asks what people ought to do.
It is also called moral philosophy. Describing the shopkeeper’s choice is easy. Judging it is the work of ethics.
1.3 Is ethics the same as obeying rules?
No. Rules tell you what is allowed. Ethics asks whether it is right. A common slip is to treat a legal act as an ethical one. The next cards show why that fails.
Three branches of ethics
2.1 How is ethics organised?
Ethics has three branches, because three different questions can be asked about right and wrong. What do the words mean? Which standards should we follow? How do we use them on real problems?
2.2 What does meta-ethics ask?
Meta-ethics asks what moral thought and talk themselves rest on. The Stanford Encyclopedia lists its puzzles. Is morality more a matter of taste than truth? Are moral standards culturally relative? Are there moral facts?
Think of it as stepping back from a single choice to ask what ‘right’ means at all.
2.3 What does normative ethics ask?
Normative ethics asks which standards should guide our choices. ‘Normative’ just means about what ought to be. Utilitarianism, deontology and virtue ethics all belong here. Card 6 explains each in plain words.
2.4 What does applied ethics do?
Applied ethics takes those standards to real problems. Business ethics studies the ethical side of buying and selling. Environmental ethics studies how humans should treat nature. Informed consent is treated as the core of bioethics, the ethics of health care.
A doctor deciding whether to tell a dying patient the full truth is facing an applied question. This is our own example.
Think it through: Which branch is a question like ‘What makes any act right at all?’
That is meta-ethics. It steps back from the single choice. The doctor’s case is applied ethics.
Sources
- Stanford Encyclopedia of Philosophy: Metaethics
- Stanford Encyclopedia of Philosophy: Deontological Ethics
- Stanford Encyclopedia of Philosophy: Virtue Ethics
- Stanford Encyclopedia of Philosophy: Ethics and Business
- Stanford Encyclopedia of Philosophy: Environmental Ethics
- Stanford Encyclopedia of Philosophy: Informed Consent
Ethics versus law
3.1 Why can something be legal but still wrong?
Because law is made by social facts, not by moral merit. Legal positivism holds that the existence and content of law depend on social facts, not on its merits. In Austin’s version, laws are orders backed by the threat of a sanction, a punishment.
So a rule can be valid law without being good. Ethics is the test of the merits.
3.2 What does the shopkeeper show?
He may break no law by keeping the extra money. Most people would still call it wrong. That gap is a favourite exam theme. It is our own example.
3.3 Can a law make people honest?
No, not on its own. The Second Administrative Reforms Commission said that the absence of rules is not the problem and that one cannot mandate honesty.
Law can punish the dishonest. It cannot create the wish to be honest. That wish is ethics.
3.4 How did UPSC put the idea?
UPSC used Potter Stewart’s line in 2022. It says: ethics is knowing the difference between what you have the right to do and what is right to do.
Law, morality and values
Ethics versus morality
4.1 Are ethics and morality the same?
In daily talk, the two words often swap places. Many writers keep them apart. Our own working split: morality is the beliefs and codes people hold, and ethics is the study of them. Say this in one line in an exam.
4.2 What do the Stanford philosophers say about 'morality'?
They say the word has two uses, because it can describe or it can prescribe. Descriptively, it means the codes of conduct a society or a group such as a religion endorses. A person can also accept a code for her own behaviour.
Normatively, it means a code that all rational people would endorse under specified conditions.
4.3 Is every social code morality?
No. The same entry notes that societies often distinguish between morality, law and religion. So morality is not simply every rule a society has.
Where values come from
5.1 Where do our moral codes come from?
From groups and from individuals. The Stanford entry names a society, a group such as a religion, and an individual who accepts a code for her own behaviour.
Our own list adds family upbringing, culture, tradition, philosophy and conscience. No single source covers everything.
5.2 Why does that matter in an answer?
Because sources can disagree. A family value may clash with a law, and conscience may clash with an order. A strong answer names more than one source and shows how you weigh them. This is our own exam tip.
Ways to decide
6.1 How do thinkers decide what is right?
They look at different things, because each family of theories asks a different question. Some look at results. Some look at duties. Some look at character.
| Family | It judges an act by | Example (our own) |
|---|---|---|
| Consequentialism | Its consequences | Does lying save more people from harm? |
| Deontology | Duties and rules | Is lying forbidden whatever the result? |
| Virtue ethics | The character of the actor | What would an honest person do? |
Definitions from the Stanford Encyclopedia entries. Examples are our own.
6.2 What is consequentialism?
It says that whether an act is right depends only on the consequences of that act, or of something related to it. Utilitarianism is its paradigm case. The classic names are Bentham, Mill and Sidgwick.
6.3 What is deontology?
The word comes from the Greek for duty, deon, and study, logos. It is about which choices are required, forbidden or permitted. Immanuel Kant is regarded as central to it.
6.4 What is virtue ethics?
It is one of the three major approaches in normative ethics. It stresses virtues, or moral character, not duties or consequences.
6.5 Is there a simpler checklist?
Yes. The Markkula Center’s framework offers five lenses. Use two or three on a case.
| Lens | Asks |
|---|---|
| Utilitarian | Which action gives the greatest balance of good over harm for as many people as possible? |
| Rights | Which action best protects the moral rights of those affected? |
| Justice | Is each person given their due, as fair or equal treatment? An old Roman definition says to render to each his due. |
| Common good | Does the action contribute to life in community? |
| Virtue | Is the action consistent with ideal virtues such as honesty and courage? |
Paraphrased from the Markkula Center page.
6.6 Which approach wins?
None wins every time. A strong answer tests the dilemma against two or three lenses. Then it says which fits best and why.
How do we decide, and what has UPSC asked?
Public office, higher bar
7.1 Why is public ethics held to a higher standard?
Because public office gives power over other people’s lives and money. The Second Administrative Reforms Commission put it sharply. Public office and control over the public purse offer enormous temptation and opportunity to promote private gain at public cost.
7.2 What is the cost of failure?
A private failure may hurt a few people. A public official’s failure also damages trust in institutions. The same report says trust and confidence need an environment that prizes transparency, openness, boldness, fairness and justice.
The UK’s Seven Principles of Public Life, also called the Nolan Principles, start with selflessness. Holders of public office should act solely in terms of the public interest.
7.3 What are the levels of ethics?
Our own working split has three levels. Personal ethics is your own conduct. Professional ethics is the standards of a workplace. Social ethics is the wider norms of society. A civil servant is judged at all three levels at once.
Word origins
8.1 Where does the word 'ethics' come from?
From Greek. Wiktionary traces it through Late Latin ēthica and Ancient Greek ēthikē to êthos, meaning character or moral nature. Aristotle’s own writings on character are called ta êthika.

8.2 Where does 'moral' come from?
From Latin. The word comes from mōrālis, meaning relating to manners or morals, and from mos, meaning manner or custom. Cicero first used it to translate the Greek ēthikós.
So the two words are translation twins. That is why they overlap.
8.3 What is the good, according to the old schools?
They disagreed. Ethical hedonism claims that only pleasure has worth and only pain has disvalue. Aristotle turned to eudaimonia, often translated happiness or flourishing, and to virtue.
Kant is central to the duty-based school. The Related Articles cover each school.
What has UPSC asked?
9.1 Which questions came from this topic?
UPSC Civil Services (Main) 2024, General Studies Paper IV, Q1(b)
“Ethics encompasses several key dimensions that are crucial in guiding individuals and organizations towards morally responsible behaviour.” Explain the key dimensions of ethics that influence human actions. Discuss how these dimensions shape ethical decision-making in the professional context.
Marks: 10 marks, 150 words.
Our own outline: use the three branches, the levels of ethics and two or three lenses from this lesson.
UPSC Civil Services (Main) 2022, General Studies Paper IV, Q3(a)
What does each of the following quotations mean to you? (a) “Ethics is knowing the difference between what you have the right to do and what is right to do.” — Potter Stewart
Marks: 30 marks, 150 words each part.
Our own outline: this is the law-versus-ethics gap in one line. Give the shopkeeper-type example.
UPSC Civil Services (Main) 2020, General Studies Paper IV, Q4(a)
Distinguish between laws and rules. Discuss the role of ethics in formulating them.
Marks: 10 marks, 150 words.
Our own outline: define each, then argue that ethics supplies the merit test for both.
UPSC Civil Services (Main) 2016, General Studies Paper IV, Q5
Law and ethics are considered to be the two tools for controlling human conduct so as to make it conducive to civilized social existence. Discuss how they achieve this objective. Giving examples, show how the two differ in their approaches.
Marks: 10 marks, 150 words.
Our own outline: law works by enforced sanction, ethics by conscience and shared values. Use card 3.
Exam traps
10.1 Which mistakes cost marks?
- Ethics has three branches: meta, normative and applied.
- Utilitarianism sits under normative ethics, not meta-ethics.
- Something legal can still be unethical.
- Ethics traces to Greek. Moral traces to Latin.
- Deontology is about duty. Consequentialism is about results.
- Medical, business and environmental ethics are applied ethics.
Remember this
- Ethics: the study of right and wrong conduct.
- Three branches: meta-ethics, normative ethics, applied ethics.
- Law is enforced by sanction. Ethics tests the merits.
- Three theory families: results, duties, character.
- Public office: higher bar, because it carries power and public trust.
- Words: ethics from Greek êthos, moral from Latin mos.
Explain it back: Why can a legal act still be unethical?
Check your understanding
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MCQ on Ethics
Try 8 practice questions on ethics, its branches, law and the old Greek roots.
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