After several minutes of meditation, he(Einstein) said. I don't know what weapons might be used in World War III. But there isn't any doubt what weapons will be used in World War IV. And what are those? a guest asked. Stone spears, said Einstein.
I don't know what weapons might be used in World War III. But there isn't any doubt what weapons will be used in World War IV.
And what are those?
Stone spears,
-- Albert Einstein
