War is just when it is necessary; arms are permissible when there is no hope except in arms.

Those who play with the devil's toys will be brought by degrees to wield his sword.

War is an ugly thing, but not the ugliest of things. The decayed and degraded state of moral and patriotic feeling which thinks that nothing is worth war is much worse.

There is no avoiding war; it can only be postponed to the advantage of others.

I have nothing to offer but blood, toil, tears and sweat.

Never think that war, no matter how necessary, nor how justified, is not a crime.

Always forgive your enemies; nothing annoys them so much.

To secure ourselves against defeat lies in our own hands, but theopportunity of defeating the enemy is provided by the enemy himself.

The only thing necessary for the triumph of evil is for good men to do nothing.

It is forbidden to kill; therefore all murderers are punished unless they kill in large numbers and to the sound of trumpets.

We are no longer going to ask for the land, but we are going to take it without negotiating.

Either war is obsolete, or men are.

An eye for an eye will only make the whole world blind.

When the enemy is relaxed, make them toil. When full, starve them. When settled, make them move.

A person may cause evil to others not only by his actions but by his inaction, and in either case he is justly accountable to them for the injury.

I know not with what weapons World War III will be fought, but World War IV will be fought with sticks and stones.

What is evil? - Whatever springs from weakness.

Education is a weapon, whose effect depends on who holds it in his hands and at whom it is aimed.

As soon as men decide that all means are permitted to fight an evil, then their good becomes indistinguishable from the evil that they set out to destroy.

Everyone’s worried about stopping terrorism. Well, there’s really an easy way: Stop participating in it.

Nothing in the world is more dangerous than sincere ignorance and conscientious stupidity.