---
title: "Prima Facie Duties | Intro to Philosophy"
description: "Prima facie duties are duties you have at first sight, unless a stronger moral reason overrides them, a core idea in Intro to Philosophy ethics."
canonical: "https://fiveable.me/intro-philosophy/key-terms/prima-facie-duties"
type: "key-term"
subject: "Intro to Philosophy"
unit: "Unit 9"
---

# Prima Facie Duties | Intro to Philosophy

## Definition

Prima facie duties are moral duties that count in favor of an action at first glance, but can be overridden by a stronger duty or other moral reason. In Intro to Philosophy, they show how deontological ethics handles moral conflict without saying every rule is absolute.

## What It Is

Prima facie duties are the duties that seem binding when you first look at a situation in Intro to Philosophy. They are real moral reasons, but they are not always the final word. If another duty is stronger in the moment, the prima facie duty can be outweighed.

That idea matters because moral life is messy. You might have a duty to keep a promise, tell the truth, help someone in danger, or avoid harming others, and one situation can trigger more than one of these at once. Prima facie duties give you a way to say, “Yes, this counts morally,” without pretending every duty can be followed together with no conflict.

The phrase is most often linked to W. D. Ross, whose view is a kind of deontological ethics. Ross agreed with deontology that morality is not just about outcomes, but he rejected the idea that one single rule always settles every case. Instead, he thought we start with several basic duties, and practical moral judgment comes from weighing them against one another.

A simple example is a promise versus an emergency. If you promised to meet a friend, that promise gives you a prima facie duty to show up. But if, on the way, you see someone injured and able to help, the duty to aid may outweigh the duty to keep the appointment. The promise does not stop counting, it just loses the conflict because another duty is morally stronger in that moment.

That is why prima facie duties sit between strict rule-following and pure outcome-calculation. They are not moral absolutes, because they can be overridden. But they are also not consequentialist, because the decision is not based only on which option produces the best overall results. The focus stays on moral reasons, duties, and what you owe to others.

In philosophy class, the hardest part is usually not memorizing the term. It is seeing how the term changes the way you think about a dilemma. Prima facie duties let you explain why a person can have multiple genuine obligations at once, even when no single rule gives an automatic answer.

## Why It Matters

Prima facie duties matter because they show one way philosophers handle moral conflict without giving up on duty altogether. If you are reading a deontology unit, this term is often the bridge between “actions are right or wrong by rule” and “real life creates clashes between rules.”

The concept also helps you compare ethical theories more accurately. A strict moral absolutist says some rules never break, no matter what. A consequentialist asks which choice leads to the best overall result. Prima facie duties give a different picture: several duties can be genuine at the same time, and moral judgment comes from weighing them.

That makes the term useful for class discussions and short essays about hard cases. You can use it to explain why lying to protect someone, breaking a promise in an emergency, or choosing between fairness and kindness is not just a random exception. The conflict itself is part of the theory.

It also sharpens your reading of Ross. If a prompt asks how Ross differs from Kant or from a more rule-heavy version of deontology, prima facie duties are part of the answer. They show that not all duty-based ethics works like a rigid checklist. Some versions allow more flexibility while still treating morality as grounded in duty, not just results.

## Connections

### Deontology

Prima facie duties belong to deontological ethics because they treat duty as morally serious. The difference is that they do not claim every duty is absolute. In a deontological discussion, this term shows that duty-based ethics can still make room for conflict, comparison, and practical judgment.

### Moral Dilemma

A moral dilemma is the kind of situation where prima facie duties matter most. You may have more than one genuine obligation pulling you in different directions, like telling the truth versus protecting someone from harm. The term gives you a way to describe why the choice is hard without saying morality is random.

### [Moral Absolutism](/intro-philosophy/key-terms/moral-absolutism)

Prima facie duties are the opposite of moral absolutism in one important way, they can be overridden. Moral absolutism says some rules never allow exceptions. Ross-style duty theory says a duty can be real and still lose out when a stronger duty is present.

### Consequentialism

Consequentialism judges actions by outcomes, while prima facie duties judge by moral reasons that exist before you calculate results. That difference matters in essay questions about lying, promises, or rescue cases. If a prompt asks whether an action is right because of what it causes, you are in consequentialist territory, not prima facie duty territory.

## On the AP Exam

Short-answer questions and essay prompts often ask you to compare duty-based ethics with outcome-based ethics. Prima facie duties are what you use when a case has more than one moral pull, such as keeping a promise while also helping someone in danger. You would identify which duties are present, explain why each one counts, and then show which duty seems stronger in that situation.

If a passage mentions W. D. Ross, a promise, or a conflict between telling the truth and preventing harm, this term is a strong clue. You are not just naming a rule, you are explaining how a moral theory handles conflict. In discussion posts or response papers, it can also help you say why a decision is justified without pretending the losing duty never mattered.

## Prima Facie Duties vs Moral Absolutism

These are easy to mix up because both talk about duties and rules, but they do not work the same way. Moral absolutism says a rule always wins, no exceptions. Prima facie duties say a duty usually counts, but another duty can override it in a specific case.

## Key Takeaways

- Prima facie duties are duties that count morally at first glance, even if they do not end up deciding the action.
- They are tied to deontological ethics, but they are less rigid than moral absolutism.
- The point of the concept is to handle moral conflict, not to erase it.
- A promise, a duty to help, and a duty not to harm can all be real at the same time, and one may outweigh the others.
- If you are comparing ethical theories, prima facie duties give you a middle ground between strict rules and pure outcome-based reasoning.

## FAQs

### What is prima facie duty in Intro to Philosophy?

A prima facie duty is a duty that counts as a real moral reason unless a stronger duty overrides it. In Intro to Philosophy, it usually comes up in discussions of Ross and deontological ethics. The idea explains why you can have more than one moral obligation in the same situation.

### Are prima facie duties the same as absolute duties?

No. Absolute duties must be followed no matter what, while prima facie duties can be outweighed by a stronger moral reason. That difference is why the term matters in debates about moral conflict and exceptions. It gives you a more flexible duty-based theory.

### What is an example of a prima facie duty?

Keeping a promise is a classic example. If you promised to meet a friend, that creates a prima facie duty to go. But if you see someone injured on the way, the duty to help may outweigh the promise in that moment.

### How do prima facie duties relate to consequentialism?

They are different ways of thinking about morality. Consequentialism asks which action has the best results, while prima facie duties focus on the duties involved before you start calculating outcomes. A good essay answer should show that conflict clearly, especially in cases where duty and outcomes point in different directions.

## Related Study Guides

- [9.3 Deontology](/intro-philosophy/unit-9/3-deontology/study-guide/BCGoIZ1o4DeSBQ80)
- [9.1 Requirements of a Normative Moral Theory ](/intro-philosophy/unit-9/1-requirements-normative-moral-theory/study-guide/BVkYOsNmAVQpklu8)
- [9.2 Consequentialism](/intro-philosophy/unit-9/2-consequentialism/study-guide/lTvUOc7VIaAYxVr0)

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