I love argument, I love debate. I don't expect anyone just to sit there and agree with me, that's not their job.
-Margaret Thatcher
It is not necessary to understand things in order to argue about them.
-Pierre De Beaumarchais
Nothing is as frustrating as arguing with someone who knows what he's talking about.
-Sam Ewig
The most important tactic in an argument, next to being right, is to leave an escape hatch for your opponent, so that he can gracefully swing over to your side without an embarrassing loss of face.
-Sydney J. Harris