_Of Men of Science_ The story of man is the story--endlessly repeated--of a struggle: between light and darkness, between knowledge and ignorance, between good and evil, between men who would build and men who would destroy. It is no more complicated than this. That light, knowledge, good, and constructive men have had a small edge in this struggle is attested to by our slow rise over the long millennia of time. In taking stock of our successes, however, it is easy to assume the victory has been won. Nothing could be further from the truth. This is a contest that is never ended, nor can it be, as long as men are upon the Earth. While man has free choice, the elements of darkness, ignorance, evil and destruction are available for him to choose, and there are times when these seem the best alternatives. At the end of the 18th century one of the greatest minds of all time was destroyed by one stroke of a guillotine blade. The judge who presided at the trial of the great French chemist Lavoisier is reported to have said, "The Republic has no need of men of science." Choices like this have often been made by the society of man. A turnoff to darkness has been deliberately taken, superstition has been embraced while knowledge has been destroyed. When times are placid we assume such choices could result only from some great insanity; that the men who made them had themselves known more pleasant days. The truth is that there are extremes of circumstance which could force almost any man to abandon that which he has always held to be right and good, and only the very giants could stand up and prove themselves unmoved. Such giants may seem, in ordinary life, rather obscure. Illustrating this are the people in this story: a somewhat pompous little mayor; a professor of chemistry in a small-town college in the mountain west; a minister of the gospel, who would be lost with a big-city congregation; a sheriff who doesn't care what happens to him personally as long as he sticks to the kind of rightness that has always worked; and a high-school boy who learns what it means to do a man's work. Such people are important, the most important people alive today. They are... --- Chapter 1. _The Comet_ The comet was the only thing in the whole sky. All the stars were smothered by the light of its