Short of plagiarizing the entire piece, I will excerpt the definition and allow you to travel to his full article for the remainder.
What is the role of a U.S. Supreme Court justice? A reasonable start for an answer is the recognition that our Constitution represents the rules of the game. A Supreme Court justice has one job and one job only namely; he is a referee. There is nothing complicated about this. A referee's job, whether he is a football referee or a Supreme Court justice, is to know the rules of the game and make sure that they are evenly applied without bias. Do we want referees to allow empathy to influence their decisions? Let's look at it using this year's Super Bowl as an example.
Brilliance.. no doubt about it.