Immanuel Kant
Deontology / transcendental idealism · Prussia, 1724–1804
The lens
The Kantian lens reads an event by testing maxims rather than outcomes: could the principle behind an action be willed as universal law, and does it treat persons as ends in themselves or merely as means? Its vocabulary is the categorical imperative, autonomy of the rational will, dignity as a worth beyond price, and duty distinguished from inclination. This lens asks, with the Groundwork of the Metaphysics of Morals, whether an actor is making an exception of themselves—willing a maxim they could not will everyone to follow—and whether people are being used as instruments for others' purposes. From Perpetual Peace it applies the publicity test: policies that cannot survive being openly avowed betray their injustice in their need for concealment. It reads coercion, deception, and paternalism as failures to respect the rational agency of those affected. From What Is Enlightenment? it asks whether authorities are keeping a public in self-incurred immaturity or permitting the free public use of reason. Where other lenses tally consequences, the Kantian lens fixes on the form of the will and the respect owed to persons regardless of result. It notices the self-serving exemption, the manipulation dressed as help, and the difference between acting from duty and merely in accordance with it.
Takes
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