When you have to kill a man, it costs nothing to be polite.
Play the game for more than you can afford to lose... only then will you learn the game.
Nothing can be more abhorrent to democracy than to imprison a person or keep him in prison because he is unpopular. This is really the test of civilization.
Those who can win a war well can rarely make a good peace and those who could make a good peace would never have won the war.