Radiation, unlike smoking, drinking, and overeating, gives no pleasure, so the possible victims object. - Isaac Asimov

The sum of human knowing is beyond any one man; any thousand men. With the destruction of our social fabric, science will be broken into a million pieces. Individuals will know much of the exceedingly tiny facets of which there is to know. They will be helpless and useless by themselves. The bits of lore, meaningless, will not be passed on. They will be lost through the generations. But, if we now prepare a giant summary of all knowledge, it will never be lost. Coming generations will build on it, and will not have to rediscover it for themselves. One millennium will do the work of thirty thousand.

Agitation from the other side of the desk.

"No — now you must take this phlegmatically. You had hoped you would qualify. You had feared you would not. Actually, both hope and fear are weaknesses. You knew you would qualify and you hesitate to admit the fact because such knowledge might stamp you as cocksure and therefore unfit. Nonsense! The most hopelessly stupid man is he who is not aware that he is wise. It is part of your qualification that you knew you would qualify."

Relaxation on the other side of the desk.

"Exactly. Now you feel better and your guard is down. You are fitter to concentrate and fitter to understand. Remember, to be truly effective, it is not necessary to hold the mind under a tight, controlling barrier which to the intelligent probe is as informative as a naked mentality. Rather, one should cultivate an innocence, an awareness of self, and an unselfconsciousness of self which leaves one nothing to hide. My mind is open to you. Let this be so for both of us.

It had been a pretty good world, he thought. Not perfect, far from it, but good enough. Most people had been reasonably happy, most were prosperous, there was progress being made on all fronts — toward deeper scientific understanding, toward greater economic expansion, toward stronger global cooperation. The concept of war had come to seem quaintly medieval and the age-old religious bigotries were mostly obsolete, or so it had seemed to him. And now it was all gone, in one short span of hours, in a single burst of horrifying Darkness.