But if political philosophy is unrealizable in one sense, it is unavoidable in another. - Michael Sandel

We have seen that Rawls’ theory of justice requires for its coherence a conception of community in the constitutive sense, which requires in turn a notion of agency in the cognitive sense, and we have hound that Rawls’ theory of the good can allow for neither. This calls into question the theory of justice, or the theory of the good, or both.

The Second World War supplied the occasion for the spending, and Keynesian economics supplied the rationale. But Keynesian fiscal policy had political appeal even before the war demonstrated its economic success. For unlike the various proposals for structural reform, such as vigorous antitrust action or national economic planning, Keynesian economics offered a way for the government to control the economy without having to choose among controversial views of the good society. Where earlier reformers had sought economic arrangements that would cultivate, citizens of a certain kind, Keynesians undertook no formative mis­sion; they proposed simply to accept existing consumer preferences and to regulate the economy by manipulating aggregate demand.

Political philosophy seems often to reside at a distance from the world. Principles are one thing, politics another, and even our best efforts to live up to our ideals seldom fully succeed.