Obit Dworkin

February 14, 2013 - 12:30 PM
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. His family said Dworkin died of leukemia in London early Thursday, Feb. 14, 2013. He was 81. (AP Photo/New York University, Leo Sorel)