[ Heteronomy of the Will as the Source of all spurious Principles of Morality ]

[ Classification of all Principles of Morality which can be founded on the Conception of Heteronomy ]

[ THIRD SECTION—TRANSITION FROM THE METAPHYSIC OF MORALS TO THE CRITIQUE OF PURE PRACTICAL REASON ]

[ The Concept of Freedom is the Key that explains the Autonomy of the Will ]

[ Freedom must be presupposed as a Property of the Will of all Rational Beings ]

[ Of the Interest attaching to the Ideas of Morality ]

[ How is a Categorical Imperative Possible? ]

[ Of the Extreme Limits of all Practical Philosophy. ]

[ CONCLUDING REMARK ]