Definition
Kantian Ethics is a deontological (duty-based) ethical system centered on the “Categorical Imperative.” It argues that the morality of an action is determined by its adherence to rational rules and duties, rather than its consequences. For Kant, an action is only truly moral if it is performed from a “good will” and can be universalized without contradiction.
Why It Matters
Morality shouldn’t depend on consequences or feelings. Kant provides the “categorical imperative”—a rigorous, logical test for behavior that ensures we treat people as ends in themselves, creating a stable foundation for universal human rights and duties.
Core Concepts
- The Categorical Imperative (CI): The supreme principle of morality. It has several formulations, most notably:
- Formula of Universal Law: “Act only according to that maxim whereby you can at the same time will that it should become a universal law.”
- Formula of Humanity: “Act in such a way that you treat humanity, whether in your own person or in the person of any other, never merely as a means to an end, but always at the same time as an end.”
- Deontology: The study of duty. Actions are right or wrong in themselves (e.g., “lying is wrong”) regardless of the outcome.
- The Good Will: The only thing that is good without qualification. A good will acts out of respect for the moral law.
- Autonomy: The idea that rational beings are self-governing; they provide the moral law to themselves through reason.