What makes an argument in a law case good or bad? Can legal decisions be justified by purely rational argument or are they ultimately determined by more subjective influences? These questions are central to the study of jurisprudence, and are thoroughly and critically examined in Legal Reasoning and Legal Theory, now with a new and up-to-date foreword. Its clarity of explanation and argument make this classic legal text readily accessible to lawyers, philosophers, and any general reader interested in legal processes, human reasoning, or practical logic.

This book is about legal theory and legal reasoning. In particular,it seeks to examine the relations that obtain between law and a theory of law and legal reasoning and a theory of legal reasoning. Two features of law and legal reasoning are treated as being of particular importance in this regard: law is institutional, and legal reasoning is formal. These two features are so closely connected that it is reasonable to believe that in fact they are simply two ways of looking at the same issue. This becomes clearer as the focus of the book shifts from the institutional nature of law to the consequences of this for legal reasoning, and which is the principal focus of the book. The author received the European Academy of Legal Theory award in 2000 for the doctoral dissertation on which this work was based.

The common law, which is made by courts, consists of rules that govern relations between individuals, such as torts (the law of private wrongs) and contracts. Legal Reasoning explains and analyzes the modes of reasoning utilized by the courts in making and applying common law rules. These modes include reasoning from binding precedents (prior cases that are binding on the deciding court); reasoning from authoritative although not binding sources, such as leading treatises; reasoning from analogy; reasoning from propositions of morality, policy, and experience; making exceptions; drawing distinctions; and overruling. The book further examines and explains the roles of logic, deduction, and good judgment in legal reasoning. With accessible prose and full descriptions of illustrative cases, this book is a valuable resource for anyone who wishes to get a hands-on grasp of legal reasoning.

Methods of Legal Reasoning describes and criticizes four methods used in legal practice, legal dogmatics and legal theory: logic, analysis, argumentation and hermeneutics. The book takes the unusual approach of discussing in a single study four different, sometimes competing concepts of legal method. Sketched this way, the panorama allows the reader to reflect deeply on questions concerning the methodological conditioning of legal science and the existence of a unique, specific legal method.

The most glamorous and even glorious moments in a legal system come when a high court recognizes an abstract principle involving, for example, human liberty or equality. Indeed, Americans, and not a few non-Americans, have been greatly stirred--and divided--by the opinions of the Supreme Court, especially in the area of race relations, where the Court has tried to revolutionize American society. But these stirring decisions are aberrations, says Cass R. Sunstein, and perhaps thankfully so. In Legal Reasoning and Political Conflict, Sunstein, one of America's best known commentators on our legal system, offers a bold, new thesis about how the law should work in America, arguing that the courts best enable people to live together, despite their diversity, by resolving particular cases without taking sides in broader, more abstract conflicts. Sunstein offers a close analysis of the way the law can mediate disputes in a diverse society, examining how the law works in practical terms, and showing that, to arrive at workable, practical solutions, judges must avoid broad, abstract reasoning. Why? For one thing, critics and adversaries who would never agree on fundamental ideals are often willing to accept the concrete details of a particular decision. Likewise, a plea bargain for someone caught exceeding the speed limit need not--indeed, must not--delve into sweeping issues of government regulation and personal liberty. Thus judges purposely limit the scope of their decisions to avoid reopening large-scale controversies. Sunstein calls such actions incompletely theorized agreements. In identifying them as the core feature of legal reasoning--and as a central part of constitutional thinking in America, South Africa, and Eastern Europe-- he takes issue with advocates of comprehensive theories and systemization, from Robert Bork (who champions the original understanding of the Constitution) to Jeremy Bentham, the father of utilitarianism, and Ronald Dworkin, who defends an ambitious role for courts in the elaboration of rights. Equally important, Sunstein goes on to argue that it is the living practice of the nation's citizens that truly makes law. For example, he cites Griswold v. Connecticut, a groundbreaking case in which the Supreme Court struck down Connecticut's restrictions on the use of contraceptives by married couples--a law that was no longer enforced by prosecutors. In overturning the legislation, the Court invoked the abstract right of privacy; the author asserts that the justices should have appealed to the narrower principle that citizens need not comply with laws that lack real enforcement. By avoiding large-scale issues and values, such a decision could have led to a different outcome in Bowers v. Hardwick, the decision that upheld Georgia's rarely prosecuted ban on sodomy. And by pointing to the need for flexibility over time and circumstances, Sunstein offers a novel understanding of the old ideal of the rule of law. Legal reasoning can seem impenetrable, mysterious, baroque. This book helps dissolve the mystery. Whether discussing the interpretation of the Constitution or the spell cast by the revolutionary Warren Court, Cass Sunstein writes with grace and power, offering a striking and original vision of the role of the law in a diverse society. In his flexible, practical approach to legal reasoning, he moves the debate over fundamental values and principles out of the courts and back to its rightful place in a democratic state: the legislatures elected by the people.

Demystifying Legal Reasoning defends the proposition that there are no special forms of reasoning peculiar to law. Legal decision makers engage in the same modes of reasoning that all actors use in deciding what to do: open-ended moral reasoning, empirical reasoning, and deduction from authoritative rules. This book addresses common law reasoning when prior judicial decisions determine the law, and interpretation of texts. In both areas, the popular view that legal decision makers practise special forms of reasoning is false.