Kant's Categorical Imperative has two formulations:
Act according to principles that can be universal laws for everyone.
Example: Lying is wrong since a world where everyone lies would be chaotic.
Treat individuals as ends, respecting their dignity, not merely as means to your goals.
Example: Manipulating others for personal gain is unethical; we should respect their autonomy.
Both formulations align with universal human rights, such as freedom, dignity, fairness, and truthfulness.