After having lunch with Judge Learned Hand, Holmes entered his carriage to be driven away. As he left, Judge Hands parting salute was:

Do justice, sir, do justice.

Holmes ordered the carriage stopped.

That is not my job, Holmes said to Judge Hand. It is my job to apply the law.

Robert H. Bork, The Tempting of America: The Political Seduction of the Law (New York: The Free Press, 1990), p. 6