There are causes worth dying for, but none worth killing for.
Never ascribe to malice that which can adequately be explained by incompetence.
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.
The choice is not between violence and nonviolence but between nonviolence and nonexistence.
Never in the field of human conflict was so much owed by so many to so few.
There is no instance of a nation benefiting from prolonged warfare
Battles are lost in the same spirit in which they are won.
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.
Nothing in the world is more dangerous than sincere ignorance and conscientious stupidity.
I know not with what weapons World War III will be fought, but World War IV will be fought with sticks and stones.
War is mainly a catalogue of blunders.
All the war-propaganda, all the screaming and lies and hatred, comes invariably from people who are not fighting.
War is just when it is necessary; arms are permissible when there is no hope except in arms.
Education is a weapon, whose effect depends on who holds it in his hands and at whom it is aimed.
Know your enemy and know yourself and you will always be victorious
Civil war? What does that mean? Is there any foreign war? Isn't every war fought between men, between brothers?
Even the finest sword plunged into salt water will eventually rust.
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.
A conqueror is always a lover of peace.
No one can guarantee success in war, but only deserve it.
An eye for an eye will only make the whole world blind.