[drawing a pistol] Get away from that phone!
I would advise you not to interfere.
I was willing to shoot Captain Renault and I'm willing to shoot you.
[into the phone] Hello?
Put that phone down!
Get me the radio tower.
Put it down! [Strasser draws his gun; Rick fires, killing him, which is immediately followed by the arrival of the Vichy police]
Major Strasser has been shot. [pause] Round up the usual suspects. Bolded section ranked #32 in the the American Film Institute's list of the top 100 movie quotations in American cinema.