Julius Stone was one of the twentieth century’s most influential scholars in the field of international law. The Challis Professor of Jurisprudence and International Law at the University of Sydney from 1942 to 1972, Stone also held distinguished positions in the United States, United Kingdom, New Zealand, and Israel. As a public intellectual and adviser to international bodies, Stone was instrumental in shaping international policy, from the creation of Israel to the establishment of a “hotline” linking the White House and Kremlin during the Cold War. Stone’s particular contribution to the rapidly changing field of international law, however, was to develop a sociological approach to its study. This approach, which underpinned his meticulous scholarly analysis of the law and drove his insightful and pragmatic contributions in the field of international policy, offered a new way of analyzing international law and understanding how it could be developed so as better to contribute to global justice.