So long as there are men there will be wars

So long as there are men there will be wars. So long as there are men there will be wars.

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 do not know how the third world war will be fought, but I can tell you what they will use in the fourth... rocks."

When asked how World War III would be fought, Einstein replied that he didn't know. But he knew how World War IV would be fought: With sticks and stones!