Everything in war is very simple. But the simplest thing is difficult.

The earth provides enough to satisfy every man's needs, but not every man's greed

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

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.

Either war is obsolete, or men are.

Know your enemy and know yourself and you will always be victorious

A war between Europeans is a civil war.

When you surround an army, leave an outlet free. Do not press a desperate foe too hard.

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

I object to violence because when it appears to do good, the good is only temporary; the evil it does is permanent

The central defect of evil is not sin but the refusal to acknowledge sin.

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

Any alliance whose purpose is not the intention to wage war is senseless and useless.

Some people are contriving ways and means of making us collapse.

There was never a bad peace or a good war.

Demoralize the enemy from within by surprise, terror, sabotage, assassination. This is the war of the future.

Occasionally the tree of Liberty must be watered with the blood of Patriots and Tyrants.

Hatred is gained as much by good works as by evil.

If the Nuremberg laws were applied, then every post-war American president would have been hanged.

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

Yippies, Hippies, Yahoos, Black Panthers, lions and tigers alike - I would swap the whole damn zoo for the kind of young Americans I saw in Vietnam.