While announcing Sonia Sotomayor as his nominee to the Supreme Court, President Barack Obama praised her as a judge who combined a mastery of the law with “a common touch, a sense of compassion, and an understanding of how the world works and how ordinary people live.” This is in keeping with his earlier statement that he wanted to appoint a justice who possessed the “quality of empathy, of understanding and identifying with people’s hopes and struggles.”

Without casting aspersions on Judge Sotomayor, we may ask whether these are really the characteristics we want in a judge.

Clearly, a good judge must have “an understanding of how the world works and how ordinary people live.” Judicial decision-making involves the application of abstract rules to concrete facts; it is impossible to render a proper judicial decision without understanding its practical effect on both the litigants and the wider community.