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

I don't know what weapons will be used in world war three, but in world war four people will use sticks and stones.

We scientists, whose tragic destiny it has been to make the methods of annihilation ever more gruesome and more effective, must consider it our solemn and transcendent duty to do all in our power in preventing these weapons from being used for the br

I don´t know the weapons that will used in the Third Great War, but in the Forth Great War men will kill each other with stones and wood clubs.

I don't know the weapons that will be used in the Thirth World War, but in the Forth men will use wood and stones.

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