Atomic energy might be as good as our present day explosives, but is unlikely to produce anything very much more dangerous. (1939)
If you go on with this nuclear arms race, all you are going to do is make the rubble bounce.
Splitting the atom has changed everything but our thinking. We are drifting toward never-before-seen disaster.
I do not believe that civilization will be wiped out in a war fought with the atomic bomb. Perhaps two thirds of the people of the earth might be killed, but enough men capable of thinking, and enough books, would be left to start again, and civilization could be restored.