The only way human beings can win a war is to prevent it.
If you know the enemy and know yourself, you need not fear the result of a hundred battles. If you know yourself but not the enemy, for every victory gained you will also suffer a defeat. If you know neither the enemy nor yourself, you will succumb in every battle.
We are men of action, lies do not become us.
War is where the young and stupid are tricked by the old and bitter into killing each other.
Moral indignation is jealousy with a halo.
Education -- if you make the most of it and you study hard and you do your homework, and you make an effort to be smart, you can do well. If you don't, you get stuck in Iraq.
Lead me, follow me, or get out of my way.
"Fool!" cried the hunchback. "You fell victim to one of the classic blunders. The most famous is 'Never get involved in a land war in Asia,' but only slightly less well known is this: 'Never go in against a Sicilian when death is on the line.'"
It was important, Dumbledore said, to fight, and fight again, and keep fighting, for only then could evil be kept at bay, though never quite eradicated.
Get your cow hide over here so I can cut it down to size!