Kant’s Practical Reason: Ethics, Freedom, and Political Thought
The Practical Use of Reason
To answer the question “What ought I do?” Immanuel Kant employs the practical use of reason. Kant believed that the ethical approaches of preceding philosophies were flawed. He developed the first formal ethics, a significant innovation. Formal ethics focuses on the form of moral actions rather than their content, establishing how actions must be in order to be morally correct, rather than setting a supreme good or specific behavioral standards.
Shortcomings of Material Ethics
Material ethics, according to Kant, have three shortcomings:
- Final goals are set by experience.
- Ethical imperatives are conditional.
- All material ethics are heteronomous; humans act based on inclinations or faith, not autonomous reason, potentially eliminating freedom.
Formal ethics, in contrast, does not propose ultimate purposes or specific rules. It is a priori, not empirical, and its categorical imperatives are autonomous, leading to universal and necessary ethical principles.
Kant’s Moral Formalism: The Categorical Imperative
For Kant, the categorical imperative is decisive in determining the moral validity of an action. The moral value lies in the action’s relation to duty, which is respecting the law contained within the categorical imperative. Human actions related to duty are classified as:
- Contrary to duty (knowing the moral duty but not fulfilling it).
- According to duty (knowing and fulfilling the moral duty, but for selfish purposes).
- From duty (acting from moral duty without selfish ends; only these actions have moral value).
Only the relationship to duty matters in assessing an action’s morality; the results are indifferent. Duty must be understood universally. The categorical imperative states: Always act according to a maxim that you would want to become universal law. Kant’s ethics are strict, never allowing derogation from the categorical imperative; being a good person is a complex task.
The Postulates of Practical Reason: Freedom, Immortality, and God
In the Critique of Pure Reason, Kant concludes that scientific knowledge of God, the soul, and freedom is impossible. However, through the practical use of reason, understanding these concepts becomes possible. They are postulates of practical reason:
- Freedom: We must accept that we are free; this derives from morality and the fact that acting from duty is not natural but an act of freedom.
- God: Exists as a guarantor of morality and happiness, rewarding moral actions in eternal life.
- Soul: Exists as a guarantee that goodwill can be achieved, requiring infinite time.
This is a rational faith, providing hope for human existence.
Political Thought
Kant’s conception of history is dominated by the idea of progress, viewing it as a process of emancipation and human liberation. This involves two claims: history is not stagnation or decline, and historical progress tends towards a goal—a socio-political order based on reason, where human nature is fully realized. This is a long, arduous, and almost utopian process.
Conditions for an Enlightened Society
Kant believed that historical evolution leads to a socio-political system meeting these characteristics:
- An enlightened society where all adults can use their reason.
- A civil society administering justice universally; free citizens use reason and respect moral and civil standards.
- Ensuring citizens’ freedom in both private and public spheres.
- Laws based on reason, not authority or religious dogmas.
- Creating a federation of free and sovereign states to ensure mutual respect and prevent war.
Kant was a staunch defender of the French Revolution, criticizing absolutist systems’ excesses and errors.