Linus Pauling: When the atomic bomb was dropped at Hiroshima, and then at Nagasaki, I was immediately asked, within a month or two, by the Rotary Club perhaps in Hollywood, to give a talk, an after-dinner talk about atomic bombs. My talk, as I recall, was entirely on what the atom is, what the atomic nucleus is, what nuclear fission is, how it’s possible for a substance to be exploded, liberating 20 million times more energy than the same amount of dynamite or TNT liberates. A couple of days after my talk, there was a man in my office from the FBI, saying, “Who told you how much plutonium there is in an atomic bomb?” And I said, “Nobody told me, I figured it out.” And he went away and that was the end of that. But, I kept giving these talks and I realized that more and more I was saying, “It seems to me that we have come to the time when war ought to be given up. It no longer makes sense to kill 20 million or 40 million people because of a dispute between two nations who are running things or decisions made by the people who really are running things. It no longer makes sense. Nobody wins. Nobody benefits from destructive war of this sort and there is all of this human suffering.” And, Einstein was saying the same thing, of course. So that’s when we decided — my wife and I — that first, I was pretty effective as a speaker. Second, I better start boning up, studying these other fields so that nobody could stand up and say, “Well, the authorities say such-and-such a thing…”