This chapter discusses Kant and deontological theories. For deontological theories, the rightness or wrongness of an act depends on features of the act itself or the rule, not consequences. It summarizes Kant's views, including his Categorical Imperative which provides a command to perform necessary actions without reference to other ends. The chapter outlines Kant's principles of universal law, ends, autonomy, and examples applying these principles. It also discusses counterexamples and problems with Kant's exceptionless rules and duties to future people.