Copernicus knew the situation—he was a watched man. For him there was no preferment: he knew too much! As long as he kept near home and did his priestly work, all was well; but a trace of ambition or heresy, and he would be dealt with. The Universities and all prominent Churchmen were secretly ordered to leave Copernicus and his vagaries severely alone. But the stars were his companions—they came out for him nightly and moved in majesty across the sky. "They do me great honor," he said; "I am forbidden to converse with great men, but God has ordered for me a procession." When the whole town slept, Copernicus watched the heavens, and made minute records of his observations. He had brought with him from Rome copies made by himself from the works of the prominent Greek astronomers, and the "Almagest" of Ptolemy he knew by heart.

He digested all that had been written on the subject of astronomy; slowly and patiently he tested every hypothesis with his rude and improvised instruments. "Surely God will not damn me for wanting to know the truth about His glorious works," he used to say.

Emerson once wrote this: "If the stars came out but once in a thousand years, how men would adore!" But before he had written this, Copernicus had said: "To look up at the sky, and behold the wondrous works of God, must make a man bow his head and heart in silence. I have thought and studied, and worked for years, and I know so little—all I can do is to adore when I behold this unfailing regularity, this miraculous balance and perfect adaptation. The majesty of it all humbles me to the dust."

It was ostracism and exile that gave Copernicus the leisure to pursue his studies in quiet, undiverted, undisturbed. He was relieved from financial pinch, having all he needed for his simple, homely wants. The mental distance that separated him from his parishioners made him free, and the order that he should not travel and that none should visit him made him master of his time. There were no interruptions—"God has set me apart," he wrote, "that I may study and make plain His works." But still, that he could not make his discoveries known was a constant, bitter disappointment to him.

In astronomy he found a means of using his mighty mathematical genius for his own pleasure and amusement. The Pope had, in seeking to subdue him, merely supplied the exact conditions he required to do his work—yet neither knew it. So mighty is Destiny: we work for one thing and fail to get it, but in our efforts we find something better.

The simple, hard-working gardeners with whom Copernicus lived, had a reverent awe for the great man; they guessed his worth, but still had suspicions of his sanity. His nightly vigils they took for a sort of religious ecstasy, and a wholesome fear made them quite willing not to do anything that might disturb him.

So passed the days away, and from a light-hearted, ambitious man, Copernicus had grown old and bowed, and nearly blind from constant watching of the stars and writing at night.

But his book, "The Revolution of the Heavenly Bodies," was at last complete. For forty years he had worked at it, and for twenty-seven years, he himself says, not a day or a night had passed without his having added something to it.

He felt that he had in this book told the truth. If men wanted to know the facts about the heavens they would find them here. He had approached the subject with no preconceived ideas; he had ever been willing to renounce a theory when he found it wrong. He knew what all other great astronomers had taught, and out of them all he had built a Science of Astronomy that he knew would stand secure.

But what should he do with all this mass of truth he had discovered? It was in his own brain, and it was in the three thousand pages of this book, which had been rewritten five times. In a few years at most, his brain would be stilled in death; and in five minutes, ignorance and malice might reduce the book to ashes, and the forty years' labor of Copernicus—working, dreaming, calculating, weeping, praying—would all go for naught and be but a tale that is told. Others might have lived such lives and known as much as he, and all was lost!