Abstract
This paper argues that we can better understand Ronald Dworkin's thesis that both individuals and governments must strive to act in accordance with principles that comprise a coherent moral conception, or with what he calls 'integrity', as an instance of Immanuel Kant's fundamental ethical injunction to act in accordance with principles that have the form of law. This Kantian reading of Dworkin highlights the internal, constitutive relation between integrity and a key condition of political legitimacy that Dworkin long stressed: that governments take individual rights _seriously_. Governments take individual rights seriously only by treating humanity as an end in itself, and governments treat humanity as an end in itself only by striving to act in accordance with an integrated system of practical laws. Acting with integrity, taking rights seriously and respecting humanity are thus internally related acts