Knowledge you can walk. Read the idea below, then step up to the general, across to peers or down to the specific.
Spiritual
Moral Philosophy
Moral philosophy, also called ethics, studies what people ought to do and what makes an action right or wrong.
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The idea
Moral philosophy, usually called ethics, asks questions about right and wrong. It studies which behavior is morally right and what people ought to do, whether the question is about keeping a promise or treating a stranger fairly. Philosophers try to answer such questions with careful, consistent reasoning instead of relying only on habit or authority. Related fields include moral psychology, which investigates how people reason about morality and form their character.
Ethics has three main branches. Normative ethics looks for general principles that tell people how they should act. Applied ethics deals with real problems, such as how we treat animals or how businesses should behave. Metaethics steps back and asks whether objective moral truths exist at all and how we could know them.
Three big theories shape the field. Consequentialists say an act is right if it leads to the best results. Deontologists say some duties matter in themselves, like telling the truth and keeping promises. Virtue ethics focuses on character and on building traits such as courage and compassion. Each theory can lead to a different answer for the same hard case, which is why people still debate them.
Check yourself
Question 1 of 2
Which theory says an act is right if it leads to the best results?
Composition
what it's made of
- Normative ethics — The search for general principles about how people should act.
- Applied ethics — Ethics used on concrete problems, such as the treatment of animals or business practices.
- Metaethics — Questions about whether moral facts exist and how moral knowledge is possible.
- Moral theories — Consequentialism, deontology and virtue ethics, three influential ways of judging actions.
Connection
how it relates
Under Spiritual
Change
how and why it evolves
- Past
- Ethics began in ancient times in Egypt, India, China and Greece, with thinkers such as Socrates and Aristotle. In the medieval period, religious teachings strongly shaped ethical thought.
- Now
- In the modern period, ethics became more secular and focused on moral experience, reasons for acting and the results of actions, and metaethics grew into its own field.
- Next
- New technologies, such as artificial intelligence and genetic editing, will likely keep raising fresh questions for applied ethics.