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Kantian ethics

philosophy religion Maturity 13-18 Next article →

Kantian ethics is a way of thinking about right and wrong. It was created by a German philosopher named Immanuel Kant. This theory is part of a tradition called Enlightenment rationalism. This means it uses human reason to decide how we should act. Kant believed that being moral is not about following rules from the outside. Instead, it is about using our own minds to find the truth. He wanted to show that morality is a requirement of reason itself.

G.W.F. Hegel (by Sichling, after Sebbers)
G.W.F. Hegel (by Sichling, after Sebbers)

At the heart of this idea is something called a good will. Kant argued that a good will is the only thing that is good without any limits. Other good things, like being loyal, can be used for bad reasons. For example, being loyal to an evil person is not a good thing. A good will is unique because it stays good no matter what happens. It chooses to do the right thing simply because it is the right thing to do. This is different from acting just because we want to.

Thomas Nagel teaching Ethics
Thomas Nagel teaching Ethics

Kant also spoke about the importance of duty. He said that an action only has true moral worth if it is done out of duty. This means doing what is right even when it is hard or when we do not want to. He made a distinction between different kinds of duties. Perfect duties are rules that must always be followed without exception. Imperfect duties, like being kind to others, allow for some flexibility in how we act. If two duties ever clash, the perfect duty must come first.

The most famous part of his theory is the categorical imperative. This is a rule that applies to everyone, no matter what they want. It is different from a hypothetical imperative, which is a rule you follow to get a specific result. For instance, you might go to a doctor only because you want to get well. The categorical imperative does not depend on your personal desires. One way to use it is through universalizability. This means you should only act on rules that could become a law for everyone.

JuergenHabermas
JuergenHabermas

Kant provided several ways to understand this main rule. One way is to treat people as ends in themselves. This means you should never use a person merely as a tool to get what you want. You must always respect their own reasons and value. Another idea is called autonomy, which means people follow moral laws through their own will. He also imagined a "Kingdom of Ends" where everyone follows these same principles. His deep ideas have influenced many thinkers and real-world situations since his time.

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File:G.W.F. Hegel (by Sichling, after Sebbers).jpg
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