Those who cling to the untrue doctrine that violence never settles anything would be advised to conjure up the ghosts of Napoleon Bonaparte and of the Duke of Wellington and let them debate it. The ghost of Hitler could referee, and the jury might well be the Dodo, the Great Auk, and the Passenger Pigeon. Violence, naked force, has settled more issues in history than has any other factor, and the contrary opinion is wishful thinking at its worst. Nations and peoples who forget this basic truth have always paid for it with their lives and freedoms.
-Robert A. Heinlein