I don't know what weapons will be used in the Third World War. But I can tell you what they'll use in the Fourth - rocks!
Albert EinsteinA man's value to the community primarily depends on how far his feelings, thoughts, and actions are directed towards promoting the good of his fellows.
Albert EinsteinEvery serious scientific worker is painfully conscious of this involuntary relegation to an ever-narrowing sphere of knowledge, which threatens to deprive the investigator of his broad horizon and degrades him to the level of a mechanic.
Albert Einstein