Ronald Dworkin, influential legal theorist who argued morality’s tie to law, dies at 81

Ronald Dworkin, an innovative legal thinker who developed a novel interpretation of the moral underpinnings of the Constitution and who became respected in liberal circles for his writings on law, politics and hotly debated public issues, died Feb. 14 in London. He was 81 and had leukemia.

New York University, where Mr. Dworkin was a law professor, announced his death.

(Leo Sorel/AP) - This is an undated file photo of Ronald Dworkin provided by New York University. Dworkin, the American philosopher and constitutional law expert best known for articulating the principle that the most important virtue the law can display is integrity, has died.

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Mr. Dworkin, who also taught for many years at the University of Oxford in Britain, went against a century of legal thinking — including the theories of his two most important mentors — to develop a new concept of jurisprudence based on society’s widely shared notions of morality.

His idea of “law as integrity” held that jurists should interpret legal cases through a consistent set of moral principles. In other words, law and morality were inextricably linked, which was a subtle twist in legal thinking. Mr. Dworkin’s theories gained a wide following, particularly among social liberals.

“For many, Dworkin was something of a legal prophet who tried to invest legal interpretation with a sense of moral reasoning,” Jonathan Turley, a law professor at George Washington University, said Thursday. “His writings offered a new and transcendent view of the law — a view that will influence legal reasoning for generations.”

In one of his landmark books, “Taking Rights Seriously” (1978), Mr. Dworkin rejected the two prevailing theories that had dominated legal thinking in the United States and Britain for most of the century: legal positivism and utilitarianism.

Legal positivism maintained that individuals possessed only those rights granted to them through political decisions or long-standing social practices. Utilitarianism suggested that the law should uphold the principle of providing the greatest good for the greatest number of people. By that theory, Mr. Dworkin pointed out, the rights of a minority would always be subject to the will of the majority.

The theories had been espoused by H.L.A. Hart, Mr. Dworkin’s onetime professor at Oxford, and by Learned Hand, a federal judge in New York whom Mr. Dworkin served as a law clerk. Nonetheless, he challenged their ideas by charting a new way of thinking about legal principles.

In other books, such as “Law’s Empire” (1986) and “Freedom’s Law” (1996), Mr. Dworkin explored concepts of jurisprudence and the Constitution, which he saw as a living document built around abstract moral principles open to changing interpretations throughout history.

“He viewed the discussions by the framers as a moral dialogue about the role of government in the lives of human beings,” Turley said. “Dworkin offered a distinctly new and provocative view of what the framers were talking about. That’s what made him so remarkable.”

Mr. Dworkin applied his notions to a series of controversial issues, including abortion, affirmative action, free speech, campaign finance, terrorism, civil liberties and physician-assisted suicide. He became known as a “public intellectual,” writing for the New York Review of Books and lecturing at universities throughout the United States.