A review of Ripstein’s book on Kant’s political philosophy by Stefan Bird-Pollan:
Though Kant has been enjoying significant critical attention in moral and political philosophy since Rawls published A Theory of Justice almost 40 years ago, Kant’s ideas have only rarely been defended as a whole. The chief problem with Kant’s view, one which Rawls shared with Kant’s immediate successor Hegel, is that the notion of the categorical imperative is essentially too abstract and must be given a more concrete grounding. Constructivism was to be the way of doing this. Rawls thus rejected Kant’s metaphysical argument for morality and replaced it with an intuitive account of our own deep intuitions about justice, to be brought out by the procedure of the original position, later to be refined by the reflective equilibrium. Thus Kantian autonomy was to be cashed out in terms of respect for persons.