The American legal system is based on a useful falsehood. It’s based on the falsehood that this is a nation of laws, not men; that in rendering decisions, disembodied, objective judges are able to put aside emotion and unruly passion and issue opinions on the basis of pure reason.

Most people know this is untrue…

The crucial question in evaluating a potential Supreme Court justice, therefore, is not whether she relies on empathy or emotion, but how she does so. First, can she process multiple streams of emotion? Reason is weak and emotions are strong, but emotions can be balanced off each other. Sonia Sotomayor will be a good justice if she can empathize with the many types of people and actions involved in a case, but a bad justice if she can only empathize with one type, one ethnic group or one social class.