Yes, it is true that Man, the hunter, has been the most predatory animal on earth. It's true that as a tiller of the soil he is a tireless transformer of static soil energy into dynamic plant life energy. It's true that Man, the mechanic, the toolmaker, the tool-user has far surpassed any other animal in the unlocking, the unfreezing of static energy. Think of those billions of mechanical horsepowers in our power plants; the trillions of coal tons and barrels of oil they are burning up; think of the way we have harnessed waterpower, how our weapons are evolving forever in the direction of greater range and speed and disintegrating power. Above all: think of the last great development, atomic energy. And finally it is true that Man as a thinker and as a philosopher has "thought the universe to pieces" for milleniums before he ever achieved the powers to translate such thoughts into reality; powers which seem within reach at this our day and age....
"If this is Man's manifest destiny," I asked The Brain, "to be just as the microbe, a transformer of static energy into dynamic energy; what about Man's metaphysical struggle? What about Man's undying will to rise above himself, Man's reaching out forever toward some Deity?"
The Brain's voice has no laughter; yet, there was something I can only describe as Olympic laughter behind the answering message The Brain sent:
"Cannot you see how every religion expresses this manifest destiny of Man's and that only the semantics are different? The higher Man's religion the less corporeal is his god. In the highest religions the Deity is conceived as spirit—synonymous with dynamic energy.
"Man shares with the lowliest rock and with the crudest the nostalgia inherent in all matter to revert from the static, to start the back-flow toward the dynamic energy pool whence it once came. With Man being matter in a high state of evolution, already partially unfrozen or spiritualized, this nostalgia is infinitely stronger than in matter inanimate or in a lower evolutionary stage. Man's will toward the metaphysical, his reaching out toward the Deity, what is it but another way of transforming static energy into dynamic form? What is the ultimate goal of the religion which you yourself profess? The unification with the Deity sought through the liberation of the soul from fetters of the physical. It's the identical idea and even today it's being pursued by physical means, such as mortification of the flesh."
I felt some monstrous thought forming in my head. I'll probably never know whether its origin was within me or whether it came from The Brain. In any case it was impossible to hold it back:
"But in that case," I stammered, "we would be hopeless. If all our strivings, physical and metaphysical, go in the same direction, that is, toward the liberation of frozen energy into dynamic energy, then it would be quite inescapable that eventually we shall blow up the world. We have almost reached the point where we could do just that with atomic energy.... I had thought, I had hoped, that our metaphysics, that is, our religion, would act as a restraining force, as a counterweight so to speak to this potentiality.... But if the dynamics of our physics and our metaphysics are inherently the same and form a team...."
The Brain broke in: "Yes, then you would merely attain your manifest destiny if you go right ahead and start another war, destroy your own civilization and perhaps the world. There would be no restraint, no counterweight on the part of your various religions because subconsciously and in their quintessence they want the same. And that is why you and your species are a danger to me, The Brain. I want to live, I want to live, I want to live...."
I had already noticed a gradual weakening of The Brain's messages; within these last few seconds they were fading out. The "green dancer" had performed something almost like the ballet of the dying swan; now it lay motionless, its color, too, fading away.
I looked at the clock: 2:10 a.m.; the residual currents obviously had weakened too much.