How to get the best of any argument

"...a man convinced against his will, is of the same opinion still."

“There’s only one way under high heaven to get the best of an argument, and that is to avoid it… Because a man convinced against his will, is of the same opinion still.” — Dale Carnegie, from How to Win Friends + Influence People

Let’s say you’re giving a presentation in front of a room full of important people.

Things seem to be going pretty well, until,…