Inequality in education is the most pressing issue of diversity in the United States, U.S. Supreme Court Justice Sonia Sotomayor said as she accepted an award Friday from the Philadelphia Bar Association for her accomplishments in diversifying the legal profession.

“Until we solve the structural problems that make an equal education unavailable in public and in private institutions, we will not be able to reach diversity of society,” Sotomayor said. “To me, that is and remains our most pressing problem.”