Copernicus analyzed some of this money made for the King by his alchemist friends and found a large alloy of tin, copper and zinc. He explained to the King that by mixing the metals they did not change their nature nor value. Gold was gold, and copper was copper--God had made these things and hid them in the earth and men might deceive some men--a part of the time--but there was always a retribution. Debase your currency, and soon it will cease to pass current. No law can long uphold a fictitious value.
The King urged Copernicus to write a book on the subject of coinage.
The permission of the Pope was secured, and the book written. The work is valuable yet, and reveals a deep insight into the heart of things. The man knew political economy, and foretold that a people who debased their currency debased themselves.
"Money is character," he said, "and if you pretend it is one thing, and it turns out to be another, you lose your reputation and your own self-respect. No government can afford to deceive the governed. If the people lose confidence in their rulers, a new government will spring into being, built upon the ruins of the old. Government and commerce are built on confidence."
Then he went on to show that German gold was valuable everywhere, because it was pure; but Polish gold and Russian gold were below par, because the money had been tampered with, and as no secrets could be kept long, the result was the matter exactly equalized itself, save that Russians and Polanders had in a large degree lost their characters through belief in miracles. Copernicus advocated a universal coinage, to be adopted by all civilized nations, and the amount of alloy should be known and plainly stated, and this alloy should simply be the seigniorage, or what was taken out to cover the cost of mintage.
King Sigismund circulated this valuable book by Copernicus among all the courts of Europe, and it need not be stated that the suggestions made by Copernicus have been adopted by civilized nations everywhere.
The humdrum duties of a country clergyman did not still the intense longing of Copernicus to know and understand the truth. He visited the sick, closed the eyes of the dying, kept his parish register, but his heart was in mathematics, and so there is shown at Thorn an old church register kept by Copernicus, where, in the back, are great rows of figures put down by the Master as he worked at some astronomical problem. In the upper floor of the barn, back of the old dilapidated farmhouse where he lived for forty years, he cut holes in the roof, and also apertures in the sides of the building, through which he watched the movements of the stars. He lived in practical isolation and exile, for the Church had forbidden him to speak in public except upon themes that the Holy Fathers in their wisdom had authorized. None was to invite him to speak, read his writings or hold converse with him, except on strictly church matters.