An important message from the Supreme Court

At the U.S. Supreme Court, the podium for arguing counsel has a large brass plaque with a message in ALLCAPS for the lawyer arguing the case. You can see the podium and its brass plaque, albeit at some distance, here.

A trivia question for Supreme Court nerds: What is the message? What is the Supreme Court's profound guidance for lawyers as they rise to argue their cases to the highest Court in the land?

Scroll down for the answer.

.

.

.

.

.

.

.

.

.

.

.

.

.

DO NOT ADJUST MICROPHONE

UPDATE: @maggiewittlin points out that C-SPAN has a picture of it: