The touchstone of everything that can be concluded as a law for a people lies in the question whether the people could have imposed such a law on itself.
WorksCritique Of Pure Reason; Critique Of Practical Reason; Critique Of Judgment; Prolegomena To Any Future Metaphysics; Answering The Question: What Is Enlightenment?; The Metaphysics Of Morals; Religion Within The Bounds Of Bare Reason