It may be necessary to use methods other than constitutional ones.

Ideas are far more powerful than guns. We don't let our people have guns. Why should we let them have ideas?

All warfare is based on deception.

The end move in politics is always to pick up a gun.

Victorious warriors win first and then go to war, while defeated warriors go to war first and then seek to win

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

There is no instance of a nation benefiting from prolonged warfare

The supreme art of war is to subdue the enemy without fighting.

All the war-propaganda, all the screaming and lies and hatred, comes invariably from people who are not fighting.

There are causes worth dying for, but none worth killing for.

It is only the dead who have seen the end of war

A conqueror is always a lover of peace.

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

Listen up - there's no war that will end all wars

How do you defeat terrorism? Don’t be terrorized.

If you try to cure evil with evil you will add more pain to your fate.

Wanton killing of innocent civilians is terrorism, not a war against terrorism.

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

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

If we don't end war, war will end us.

Know yourself and you will win all battles.