A number of leading defenders of natural law and liberalism offer frank and lively exchanges touching upon critical issues surrounding contemporary moral and political theory.

Liberal political philosophy and natural law theory are not contradictory, but - properly understood - mutually reinforcing. Contemporary liberalism (as represented by Rawls, Guttman and Thompson, Dworkin, Raz, and Macedo) rejects natural law and seeks to diminish its historical contribution to the liberal political tradition, but it is only one, defective variant of liberalism. A careful analysis of the history of liberalism, identifying its core principles, and a similar examination of classical natural law theory (as represented by Thomas Aquinas and his intellectual descendants), show that a natural law liberalism is possible and desirable. Natural law theory embraces the key principles of liberalism, and it also provides balance in resisting some of its problematic tendencies. Natural law liberalism is the soundest basis for American public philosophy, and it is a potentially more attractive and persuasive form of liberalism for nations that have tended to resist it.

In his collection George extends the critique of liberalism he expounded in Making Men Moral and also goes beyond it to show how contemporary natural law theory provides a superior way of thinking about basic problems of justice and political morality. It is written with the same combination of stylistic elegance and analytical rigour that distinguished his critical work. Not content merely to defend natural law from its cultural despisers, he deftly turns the tables and deploys the idea to mount a stunning attack on regnant liberal beliefs about such issues as abortion, sexuality, and the place of religion in public life.

In Section 1, I outline the history of natural law theory, covering Plato, Aristotle, the Stoics and Aquinas. In Section 2, I explore two alternative traditions of natural law, and explain why these constitute rivals to the Aristotelian tradition. In Section 3, I go on to elaborate a via negativa along which natural law norms can be discovered. On this basis, I unpack what I call three 'experiments in being', each of which illustrates the cogency of this method. In Section 4, I investigate and rebut two seminal challenges to natural law methodology, namely, the fact/value distinction in metaethics and Darwinian evolutionary biology. In Section 5, I then outline and criticise the 'new' natural law theory, which is an attempt to revise natural law thought in light of the two challenges above. I conclude, in Section 6, with a summary and some reflections on the prospects for natural law theory.

Elaborates and illustrates a radical version of political and social liberalism rooted in a rich understanding of fulfilment and flourishing.

Normative Jurisprudence aims to reinvigorate normative legal scholarship that both criticizes positive law and suggests reforms for it, on the basis of stated moral values and legalistic ideals. It looks sequentially and in detail at the three major traditions in jurisprudence – natural law, legal positivism and critical legal studies – that have in the past provided philosophical foundations for just such normative scholarship. Over the last fifty years or so, all of these traditions, although for different reasons, have taken a number of different turns – toward empirical analysis, conceptual analysis or Foucaultian critique – and away from straightforward normative criticism. As a result, normative legal scholarship – scholarship that is aimed at criticism and reform – is now lacking a foundation in jurisprudential thought. The book criticizes those developments and suggests a return, albeit with different and in many ways larger challenges, to this traditional understanding of the purpose of legal scholarship.

Moral and political theorists who espouse Egalitarianism and Marxism tend to assume that it is extremely hard, if not impossible, to put forward an original and plausible moral justification of classical liberalism. Professor Spector is concerned to build just such a justification. He reconstructs and then criticizes a familiar approach to the moral foundations of classical liberalism which rests on the maximization of negative freedom, and then frames an alternative theory centered in the obligation to protect positive freedom. In doing so he parts company not only with utilitarianism and contractarianism, but also with the theory of natural rights. Among the topics he discusses are the concepts of negative and positive freedom, the notion of a moral right, the connection between positive freedom and personal autonomy, the axiological uniqueness of each human being, and the agent-relativity of moral reasons.

In Marx and Social Justice, George E. McCarthy presents a detailed and comprehensive overview of the ethical, political, and economic foundations of Marx’s theory of social justice in his early and later writings. What is distinctive about Marx's theory is that he rejects the views of justice in liberalism and reform socialism based on legal rights and fair distribution by balancing ancient Greek philosophy with nineteenth-century political economy. Relying on Aristotle’s definition of social justice grounded in ethics and politics, virtue and democracy, Marx applies it to a broader range of issues, including workers’ control and creativity, producer associations, human rights and human needs, fairness and reciprocity in exchange, wealth distribution, political emancipation, economic and ecological crises, and economic democracy. Each chapter in the book represents a different aspect of social justice. Unlike Locke and Hegel, Marx is able to integrate natural law and natural rights, as he constructs a classical vision of self-government ‘of the people, by the people’.

How do ethical norms relate to human nature? This comprehensive and interdisciplinary volume surveys the latest thinking on natural law.

"Public reason" is one of the central concepts in modern liberal political theory. As articulated by John Rawls, it presents a way to overcome the difficulties created by intractable differences among citizens' religious and moral beliefs by strictly confining the place of such convictions in the public sphere. Identifying this conception as a key point of conflict, this book presents a debate among contemporary natural law and liberal political theorists on the definition and validity of the idea of public reason. Its distinguished contributors examine the consequences of interpreting public reason more broadly as "right reason," according to natural law theory, versus understanding it in the narrower sense in which Rawls intended. They test public reason by examining its implications for current issues, confronting the questions of abortion and slavery and matters relating to citizenship. This energetic exchange advances our understanding of both Rawls's contribution to political philosophy and the lasting relevance of natural law. It provides new insights into crucial issues facing society today as it points to new ways of thinking about political theory and practice.