John Rawls's A Theory of Justice is one of the most influential works of legal and political theory published since the Second World War. It provides a memorably well-constructed and sustained argument in favour of a new (social contract) version of the meaning of social justice. In setting out this argument, Rawls aims to construct a viable, systematic doctrine designed to ensure that the process of maximizing good is both conscious and coherent – and the result is a work that foregrounds the critical thinking skill of reasoning. Rawls's focus falls equally on discussions of...