A certain view of Anglo-American liberal political theory has been commonplace for a couple of generations. It is said that the philosophical foundations of contractarian liberalism lie in the 17th century, chiefly in the formulations given to it by Hobbes and Locke. But for two distinct reasons these 17th century formulations fail to provide an adequate basis for contemporary political theory. First, the development of our political and economic institutions in the past two or three hundred years has made it impossible to accept a theory which assumes a minimal, laissez-faire state and a highly competitive economy. Second, the individualist psychological and moral assumptions of the theory are highly dubious if not clearly false.
In A Theory of justice John Rawls attempts to provide the systematic revision which liberalism so clearly needs. The revisionist intent of Rawls’ work has not received the attention it deserves, except by critics of the right who deny that such revision is needed.