It may be necessary to use methods other than constitutional ones.
Even the finest sword plunged into salt water will eventually rust.
I have nothing to offer but blood, toil, tears and sweat.
Never ascribe to malice that which can adequately be explained by incompetence.
Never think that war, no matter how necessary, nor how justified, is not a crime.
Great is the guilt of an unnecessary war.
I don't like war. I particularly don't like the celebration of war, which I think the administration is a little bit guilty of.
All the forces in the world are not so powerful as an idea whose time has come.
Listen up - there's no war that will end all wars
I object to violence because when it appears to do good, the good is only temporary; the evil it does is permanent
I know not with what weapons World War III will be fought, but World War IV will be fought with sticks and stones.
You can not lead a battle if you think you look silly on a horse.
If we don't end war, war will end us.
Heaven cannot brook two suns, nor earth two masters.
A war between Europeans is a civil war.
There is no safety for honest men except by believing all possible evil of evil men.
Know your enemy and know yourself and you will always be victorious
Ideas are far more powerful than guns. We don't let our people have guns. Why should we let them have ideas?
The choice is not between violence and nonviolence but between nonviolence and nonexistence.
Wars are poor chisels for carving out peaceful tomorrows.
It is very queer that the unhappiness of the world is so often brought on by small men.